78320796 has 24 divisors (see below), whose sum is σ = 190694784. Its totient is φ = 24971760.

The previous prime is 78320791. The next prime is 78320821. The reversal of 78320796 is 69702387.

It is a super-2 number, since 2×78320796² = 12268294172147232, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (78320791) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 141610 + ... + 142161.

It is an arithmetic number, because the mean of its divisors is an integer number (7945616).

Almost surely, 2^78320796 is an apocalyptic number.

It is an amenable number.

78320796 is an abundant number, since it is smaller than the sum of its proper divisors (112373988).

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

78320796 is a wasteful number, since it uses less digits than its factorization.

78320796 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 283801 (or 283799 counting only the distinct ones).

The product of its (nonzero) digits is 127008, while the sum is 42.

The square root of 78320796 is about 8849.9037282899. The cubic root of 78320796 is about 427.8508156219.

The spelling of 78320796 in words is "seventy-eight million, three hundred twenty thousand, seven hundred ninety-six".