78872944 has 10 divisors (see below), whose sum is σ = 152816360. Its totient is φ = 39436464.

The previous prime is 78872921. The next prime is 78872987. The reversal of 78872944 is 44927887.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 2464764 + ... + 2464795.

It is an arithmetic number, because the mean of its divisors is an integer number (15281636).

Almost surely, 2^78872944 is an apocalyptic number.

It is an amenable number.

78872944 is a deficient number, since it is larger than the sum of its proper divisors (73943416).

78872944 is a wasteful number, since it uses less digits than its factorization.

78872944 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4929567 (or 4929561 counting only the distinct ones).

The product of its digits is 903168, while the sum is 49.

The square root of 78872944 is about 8881.0440827641. The cubic root of 78872944 is about 428.8538867732.

The spelling of 78872944 in words is "seventy-eight million, eight hundred seventy-two thousand, nine hundred forty-four".