78934872 has 16 divisors (see below), whose sum is σ = 197337240. Its totient is φ = 26311616.

The previous prime is 78934871. The next prime is 78934913. The reversal of 78934872 is 27843987.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (78934871) by changing a digit.

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, 1644453 + ... + 1644500.

Almost surely, 2^78934872 is an apocalyptic number.

It is an amenable number.

78934872 is an abundant number, since it is smaller than the sum of its proper divisors (118402368).

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

78934872 is a wasteful number, since it uses less digits than its factorization.

78934872 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3288962 (or 3288958 counting only the distinct ones).

The product of its digits is 677376, while the sum is 48.

The square root of 78934872 is about 8884.5299256629. The cubic root of 78934872 is about 428.9660972659.

The spelling of 78934872 in words is "seventy-eight million, nine hundred thirty-four thousand, eight hundred seventy-two".