78731304 has 16 divisors (see below), whose sum is σ = 196828320. Its totient is φ = 26243760.

The previous prime is 78731299. The next prime is 78731309. The reversal of 78731304 is 40313787.

It is an interprime number because it is at equal distance from previous prime (78731299) and next prime (78731309).

It is not an unprimeable number, because it can be changed into a prime (78731309) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1640212 + ... + 1640259.

It is an arithmetic number, because the mean of its divisors is an integer number (12301770).

Almost surely, 2^78731304 is an apocalyptic number.

It is an amenable number.

78731304 is an abundant number, since it is smaller than the sum of its proper divisors (118097016).

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

78731304 is a wasteful number, since it uses less digits than its factorization.

78731304 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3280480 (or 3280476 counting only the distinct ones).

The product of its (nonzero) digits is 14112, while the sum is 33.

The square root of 78731304 is about 8873.0662118571. The cubic root of 78731304 is about 428.5970210749.

The spelling of 78731304 in words is "seventy-eight million, seven hundred thirty-one thousand, three hundred four".