78794694 has 112 divisors (see below), whose sum is σ = 205396560. Its totient is φ = 22472640.

The previous prime is 78794687. The next prime is 78794699. The reversal of 78794694 is 49649787.

It is a happy number.

It is a Harshad number since it is a multiple of its sum of digits (54).

It is a Curzon number.

It is a self number, because there is not a number n which added to its sum of digits gives 78794694.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (78794699) by changing a digit.

It is a polite number, since it can be written in 55 ways as a sum of consecutive naturals, for example, 4634974 + ... + 4634990.

Almost surely, 2^78794694 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 78794694, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (102698280).

78794694 is an abundant number, since it is smaller than the sum of its proper divisors (126601866).

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

78794694 is an equidigital number, since it uses as much as digits as its factorization.

78794694 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 82 (or 33 counting only the distinct ones).

The product of its digits is 3048192, while the sum is 54.

The square root of 78794694 is about 8876.6375390685. The cubic root of 78794694 is about 428.7120175903.

It can be divided in two parts, 787 and 94694, that added together give a square (95481 = 309²).

The spelling of 78794694 in words is "seventy-eight million, seven hundred ninety-four thousand, six hundred ninety-four".