78734313 has 48 divisors (see below), whose sum is σ = 137819136. Its totient is φ = 42340320.

The previous prime is 78734303. The next prime is 78734329. The reversal of 78734313 is 31343787.

It is not a de Polignac number, because 78734313 - 2⁵ = 78734281 is a prime.

It is not an unprimeable number, because it can be changed into a prime (78734303) by changing a digit.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 96678 + ... + 97488.

It is an arithmetic number, because the mean of its divisors is an integer number (2871232).

Almost surely, 2^78734313 is an apocalyptic number.

It is an amenable number.

78734313 is a deficient number, since it is larger than the sum of its proper divisors (59084823).

78734313 is a wasteful number, since it uses less digits than its factorization.

78734313 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 914 (or 911 counting only the distinct ones).

The product of its digits is 42336, while the sum is 36.

The square root of 78734313 is about 8873.2357683091. The cubic root of 78734313 is about 428.6024811310.

The spelling of 78734313 in words is "seventy-eight million, seven hundred thirty-four thousand, three hundred thirteen".