79190985 has 16 divisors (see below), whose sum is σ = 128598336. Its totient is φ = 41604288.

The previous prime is 79190963. The next prime is 79190987. The reversal of 79190985 is 58909197.

It is not a de Polignac number, because 79190985 - 2⁷ = 79190857 is a prime.

It is not an unprimeable number, because it can be changed into a prime (79190987) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 38394 + ... + 40403.

It is an arithmetic number, because the mean of its divisors is an integer number (8037396).

Almost surely, 2^79190985 is an apocalyptic number.

It is an amenable number.

79190985 is a deficient number, since it is larger than the sum of its proper divisors (49407351).

79190985 is a wasteful number, since it uses less digits than its factorization.

79190985 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 78872.

The product of its (nonzero) digits is 204120, while the sum is 48.

The square root of 79190985 is about 8898.9316774543. The cubic root of 79190985 is about 429.4295391864.

The spelling of 79190985 in words is "seventy-nine million, one hundred ninety thousand, nine hundred eighty-five".