78793015 has 8 divisors (see below), whose sum is σ = 108059040. Its totient is φ = 54029472.

The previous prime is 78792997. The next prime is 78793027. The reversal of 78793015 is 51039787.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 78793015 - 2⁷ = 78792887 is a prime.

It is a congruent number.

It is an unprimeable number.

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 7 ways as a sum of consecutive naturals, for example, 1125580 + ... + 1125649.

It is an arithmetic number, because the mean of its divisors is an integer number (13507380).

Almost surely, 2^78793015 is an apocalyptic number.

78793015 is a deficient number, since it is larger than the sum of its proper divisors (29266025).

78793015 is a wasteful number, since it uses less digits than its factorization.

78793015 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2251241.

The product of its (nonzero) digits is 52920, while the sum is 40.

The square root of 78793015 is about 8876.5429644654. The cubic root of 78793015 is about 428.7089724927.

The spelling of 78793015 in words is "seventy-eight million, seven hundred ninety-three thousand, fifteen".