78316476 has 96 divisors (see below), whose sum is σ = 216760320. Its totient is φ = 21545664.

The previous prime is 78316451. The next prime is 78316481. The reversal of 78316476 is 67461387.

It is a super-2 number, since 2×78316476² = 12266940826117152, which contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (42).

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 327565 + ... + 327803.

It is an arithmetic number, because the mean of its divisors is an integer number (2257920).

Almost surely, 2^78316476 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 78316476, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (108380160).

78316476 is an abundant number, since it is smaller than the sum of its proper divisors (138443844).

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

78316476 is a wasteful number, since it uses less digits than its factorization.

78316476 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 383 (or 381 counting only the distinct ones).

The product of its digits is 169344, while the sum is 42.

The square root of 78316476 is about 8849.6596544726. The cubic root of 78316476 is about 427.8429490458.

The spelling of 78316476 in words is "seventy-eight million, three hundred sixteen thousand, four hundred seventy-six".