78765696 has 160 divisors (see below), whose sum is σ = 239928480. Its totient is φ = 25643520.

The previous prime is 78765691. The next prime is 78765703. The reversal of 78765696 is 69656787.

It is a happy number.

78765696 is a `hidden beast` number, since 7 + 8 + 76 + 569 + 6 = 666.

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

It is an alternating number because its digits alternate between odd and even.

It is not an unprimeable number, because it can be changed into a prime (78765691) by changing a digit.

It is a polite number, since it can be written in 19 ways as a sum of consecutive naturals, for example, 736075 + ... + 736181.

It is an arithmetic number, because the mean of its divisors is an integer number (1499553).

Almost surely, 2^78765696 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 78765696, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (119964240).

78765696 is an abundant number, since it is smaller than the sum of its proper divisors (161162784).

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

78765696 is a wasteful number, since it uses less digits than its factorization.

78765696 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 204 (or 183 counting only the distinct ones).

The product of its digits is 3810240, while the sum is 54.

The square root of 78765696 is about 8875.0039999991. The cubic root of 78765696 is about 428.6594196474.

The spelling of 78765696 in words is "seventy-eight million, seven hundred sixty-five thousand, six hundred ninety-six".