78472904 has 16 divisors (see below), whose sum is σ = 151883520. Its totient is φ = 37970640.

The previous prime is 78472897. The next prime is 78472909. The reversal of 78472904 is 40927487.

It is a plaindrome in base 12.

It is not an unprimeable number, because it can be changed into a prime (78472909) 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, 157964 + ... + 158459.

It is an arithmetic number, because the mean of its divisors is an integer number (9492720).

Almost surely, 2^78472904 is an apocalyptic number.

It is an amenable number.

78472904 is a deficient number, since it is larger than the sum of its proper divisors (73410616).

78472904 is a wasteful number, since it uses less digits than its factorization.

78472904 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 316460 (or 316456 counting only the distinct ones).

The product of its (nonzero) digits is 112896, while the sum is 41.

The square root of 78472904 is about 8858.4933256169. The cubic root of 78472904 is about 428.1276150159.

The spelling of 78472904 in words is "seventy-eight million, four hundred seventy-two thousand, nine hundred four".