78676344 has 48 divisors (see below), whose sum is σ = 215170800. Its totient is φ = 25970832.

The previous prime is 78676343. The next prime is 78676349. The reversal of 78676344 is 44367687.

It is a powerful number, because all its prime factors have an exponent greater than 1 and also an Achilles number because it is not a perfect power.

78676344 is a `hidden beast` number, since 7 + 8 + 6 + 7 + 634 + 4 = 666.

Its product of digits (677376) is a multiple of the sum of its prime divisors (108).

It is a self number, because there is not a number n which added to its sum of digits gives 78676344.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (78676343) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 763797 + ... + 763899.

It is an arithmetic number, because the mean of its divisors is an integer number (4482725).

Almost surely, 2^78676344 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 78676344, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (107585400).

78676344 is an abundant number, since it is smaller than the sum of its proper divisors (136494456).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

78676344 is an equidigital number, since it uses as much as digits as its factorization.

78676344 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 321 (or 108 counting only the distinct ones).

The product of its digits is 677376, while the sum is 45.

The square root of 78676344 is about 8869.9686583437. The cubic root of 78676344 is about 428.4972675487.

The spelling of 78676344 in words is "seventy-eight million, six hundred seventy-six thousand, three hundred forty-four".