78264752 has 10 divisors (see below), whose sum is σ = 151637988. Its totient is φ = 39132368.

The previous prime is 78264737. The next prime is 78264757. The reversal of 78264752 is 25746287.

It is a super-2 number, since 2×78264752² = 12250742811243008, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (78264757) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 2445758 + ... + 2445789.

Almost surely, 2^78264752 is an apocalyptic number.

It is an amenable number.

78264752 is a deficient number, since it is larger than the sum of its proper divisors (73373236).

78264752 is a wasteful number, since it uses less digits than its factorization.

78264752 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4891555 (or 4891549 counting only the distinct ones).

The product of its digits is 188160, while the sum is 41.

The square root of 78264752 is about 8846.7367995211. The cubic root of 78264752 is about 427.7487388895.

The spelling of 78264752 in words is "seventy-eight million, two hundred sixty-four thousand, seven hundred fifty-two".