78753772 has 12 divisors (see below), whose sum is σ = 138344976. Its totient is φ = 39226640.

The previous prime is 78753761. The next prime is 78753793. The reversal of 78753772 is 27735787.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 36379 + ... + 38482.

It is an arithmetic number, because the mean of its divisors is an integer number (11528748).

Almost surely, 2^78753772 is an apocalyptic number.

It is an amenable number.

78753772 is a deficient number, since it is larger than the sum of its proper divisors (59591204).

78753772 is a wasteful number, since it uses less digits than its factorization.

78753772 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 75128 (or 75126 counting only the distinct ones).

The product of its digits is 576240, while the sum is 46.

The square root of 78753772 is about 8874.3322002278. The cubic root of 78753772 is about 428.6377875870.

The spelling of 78753772 in words is "seventy-eight million, seven hundred fifty-three thousand, seven hundred seventy-two".