78491832 has 32 divisors (see below), whose sum is σ = 197268480. Its totient is φ = 26025440.

The previous prime is 78491827. The next prime is 78491851. The reversal of 78491832 is 23819487.

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 7 ways as a sum of consecutive naturals, for example, 3978 + ... + 13145.

It is an arithmetic number, because the mean of its divisors is an integer number (6164640).

Almost surely, 2^78491832 is an apocalyptic number.

It is an amenable number.

78491832 is an abundant number, since it is smaller than the sum of its proper divisors (118776648).

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

78491832 is a wasteful number, since it uses less digits than its factorization.

78491832 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 17323 (or 17319 counting only the distinct ones).

The product of its digits is 96768, while the sum is 42.

The square root of 78491832 is about 8859.5616144367. The cubic root of 78491832 is about 428.1620343192.

The spelling of 78491832 in words is "seventy-eight million, four hundred ninety-one thousand, eight hundred thirty-two".