78204792 has 32 divisors (see below), whose sum is σ = 196721280. Its totient is φ = 25907040.

The previous prime is 78204787. The next prime is 78204799. The reversal of 78204792 is 29740287.

It is a super-2 number, since 2×78204792² = 12231978983526528, which contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 78204792.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (78204799) 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, 6084 + ... + 13907.

It is an arithmetic number, because the mean of its divisors is an integer number (6147540).

Almost surely, 2^78204792 is an apocalyptic number.

It is an amenable number.

78204792 is an abundant number, since it is smaller than the sum of its proper divisors (118516488).

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

78204792 is a wasteful number, since it uses less digits than its factorization.

78204792 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 20163 (or 20159 counting only the distinct ones).

The product of its (nonzero) digits is 56448, while the sum is 39.

The square root of 78204792 is about 8843.3473300555. The cubic root of 78204792 is about 427.6394757101.

The spelling of 78204792 in words is "seventy-eight million, two hundred four thousand, seven hundred ninety-two".