78715276 has 12 divisors (see below), whose sum is σ = 137821320. Its totient is φ = 39337760.

The previous prime is 78715267. The next prime is 78715277. The reversal of 78715276 is 67251787.

It is not an unprimeable number, because it can be changed into a prime (78715277) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 7311 + ... + 14521.

It is an arithmetic number, because the mean of its divisors is an integer number (11485110).

Almost surely, 2^78715276 is an apocalyptic number.

It is an amenable number.

78715276 is a deficient number, since it is larger than the sum of its proper divisors (59106044).

78715276 is a wasteful number, since it uses less digits than its factorization.

78715276 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 9944 (or 9942 counting only the distinct ones).

The product of its digits is 164640, while the sum is 43.

The square root of 78715276 is about 8872.1629831738. The cubic root of 78715276 is about 428.5679347228.

The spelling of 78715276 in words is "seventy-eight million, seven hundred fifteen thousand, two hundred seventy-six".