78791896 has 8 divisors (see below), whose sum is σ = 147734820. Its totient is φ = 39395944.

The previous prime is 78791887. The next prime is 78791897. The reversal of 78791896 is 69819787.

It is a tau number, because it is divible by the number of its divisors (8).

It is a hoax number, since the sum of its digits (55) coincides with the sum of the digits of its distinct prime factors.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (78791897) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 4924486 + ... + 4924501.

Almost surely, 2^78791896 is an apocalyptic number.

It is an amenable number.

78791896 is a deficient number, since it is larger than the sum of its proper divisors (68942924).

78791896 is a wasteful number, since it uses less digits than its factorization.

78791896 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 9848993 (or 9848989 counting only the distinct ones).

The product of its digits is 1524096, while the sum is 55.

The square root of 78791896 is about 8876.4799329464. The cubic root of 78791896 is about 428.7069430082.

The spelling of 78791896 in words is "seventy-eight million, seven hundred ninety-one thousand, eight hundred ninety-six".