79477984 has 12 divisors (see below), whose sum is σ = 156472344. Its totient is φ = 39738976.

The previous prime is 79477943. The next prime is 79477991. The reversal of 79477984 is 48977497.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1241812 + ... + 1241875.

It is an arithmetic number, because the mean of its divisors is an integer number (13039362).

Almost surely, 2^79477984 is an apocalyptic number.

It is an amenable number.

79477984 is a deficient number, since it is larger than the sum of its proper divisors (76994360).

79477984 is a wasteful number, since it uses less digits than its factorization.

79477984 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2483697 (or 2483689 counting only the distinct ones).

The product of its digits is 3556224, while the sum is 55.

The square root of 79477984 is about 8915.0425686028. The cubic root of 79477984 is about 429.9476842789.

It can be divided in two parts, 7947 and 7984, that added together give a triangular number (15931 = T₁₇₈).

The spelling of 79477984 in words is "seventy-nine million, four hundred seventy-seven thousand, nine hundred eighty-four".