78535956 has 12 divisors (see below), whose sum is σ = 183250592. Its totient is φ = 26178648.

The previous prime is 78535943. The next prime is 78535979. The reversal of 78535956 is 65953587.

It is a tau number, because it is divible by the number of its divisors (12).

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 3272320 + ... + 3272343.

Almost surely, 2^78535956 is an apocalyptic number.

It is an amenable number.

78535956 is an abundant number, since it is smaller than the sum of its proper divisors (104714636).

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

78535956 is a wasteful number, since it uses less digits than its factorization.

78535956 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6544670 (or 6544668 counting only the distinct ones).

The product of its digits is 1134000, while the sum is 48.

The square root of 78535956 is about 8862.0514555040. The cubic root of 78535956 is about 428.2422493859.

The spelling of 78535956 in words is "seventy-eight million, five hundred thirty-five thousand, nine hundred fifty-six".