78753072 has 20 divisors (see below), whose sum is σ = 203445560. Its totient is φ = 26251008.

The previous prime is 78753053. The next prime is 78753121. The reversal of 78753072 is 27035787.

It is a hoax number, since the sum of its digits (39) coincides with the sum of the digits of its distinct prime factors.

It is a self number, because there is not a number n which added to its sum of digits gives 78753072.

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, 820297 + ... + 820392.

It is an arithmetic number, because the mean of its divisors is an integer number (10172278).

Almost surely, 2^78753072 is an apocalyptic number.

It is an amenable number.

78753072 is an abundant number, since it is smaller than the sum of its proper divisors (124692488).

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

78753072 is a wasteful number, since it uses less digits than its factorization.

78753072 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1640700 (or 1640694 counting only the distinct ones).

The product of its (nonzero) digits is 82320, while the sum is 39.

The square root of 78753072 is about 8874.2927605528. The cubic root of 78753072 is about 428.6365176062.

The spelling of 78753072 in words is "seventy-eight million, seven hundred fifty-three thousand, seventy-two".