78348864 has 56 divisors (see below), whose sum is σ = 226149408. Its totient is φ = 23741440.

The previous prime is 78348847. The next prime is 78348877. The reversal of 78348864 is 46884387.

It is a super-2 number, since 2×78348864² = 12277088980180992, which contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (48).

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 16437 + ... + 20660.

Almost surely, 2^78348864 is an apocalyptic number.

It is an amenable number.

78348864 is an abundant number, since it is smaller than the sum of its proper divisors (147800544).

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

78348864 is a wasteful number, since it uses less digits than its factorization.

78348864 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 37123 (or 37113 counting only the distinct ones).

The product of its digits is 1032192, while the sum is 48.

The square root of 78348864 is about 8851.4893662027. The cubic root of 78348864 is about 427.9019194710.

The spelling of 78348864 in words is "seventy-eight million, three hundred forty-eight thousand, eight hundred sixty-four".