78476984 has 16 divisors (see below), whose sum is σ = 147695400. Its totient is φ = 39091552.

The previous prime is 78476969. The next prime is 78477013. The reversal of 78476984 is 48967487.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 16082 + ... + 20385.

Almost surely, 2^78476984 is an apocalyptic number.

It is an amenable number.

78476984 is a deficient number, since it is larger than the sum of its proper divisors (69218416).

78476984 is a wasteful number, since it uses less digits than its factorization.

78476984 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 36742 (or 36738 counting only the distinct ones).

The product of its digits is 2709504, while the sum is 53.

The square root of 78476984 is about 8858.7236100919. The cubic root of 78476984 is about 428.1350346912.

The spelling of 78476984 in words is "seventy-eight million, four hundred seventy-six thousand, nine hundred eighty-four".