78992963 has 8 divisors (see below), whose sum is σ = 90639360. Its totient is φ = 67437000.

The previous prime is 78992957. The next prime is 78992983. The reversal of 78992963 is 36929987.

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

It is a cyclic number.

It is not a de Polignac number, because 78992963 - 2⁸ = 78992707 is a prime.

It is not an unprimeable number, because it can be changed into a prime (78992983) by changing a digit.

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, 20723 + ... + 24236.

It is an arithmetic number, because the mean of its divisors is an integer number (11329920).

Almost surely, 2^78992963 is an apocalyptic number.

78992963 is a deficient number, since it is larger than the sum of its proper divisors (11646397).

78992963 is a wasteful number, since it uses less digits than its factorization.

78992963 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 45217.

The product of its digits is 1469664, while the sum is 53.

The square root of 78992963 is about 8887.7985463218. The cubic root of 78992963 is about 429.0713019682.

The spelling of 78992963 in words is "seventy-eight million, nine hundred ninety-two thousand, nine hundred sixty-three".