78793863 has 8 divisors (see below), whose sum is σ = 105224448. Its totient is φ = 52446264.

The previous prime is 78793829. The next prime is 78793873. The reversal of 78793863 is 36839787.

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

It is not a de Polignac number, because 78793863 - 2²⁰ = 77745287 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (78793823) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 18495 + ... + 22352.

It is an arithmetic number, because the mean of its divisors is an integer number (13153056).

Almost surely, 2^78793863 is an apocalyptic number.

78793863 is a deficient number, since it is larger than the sum of its proper divisors (26430585).

78793863 is a wasteful number, since it uses less digits than its factorization.

78793863 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 41493.

The product of its digits is 1524096, while the sum is 51.

The square root of 78793863 is about 8876.5907306803. The cubic root of 78793863 is about 428.7105104628.

The spelling of 78793863 in words is "seventy-eight million, seven hundred ninety-three thousand, eight hundred sixty-three".