79461985 has 8 divisors (see below), whose sum is σ = 95432616. Its totient is φ = 63517440.

The previous prime is 79461953. The next prime is 79461989. The reversal of 79461985 is 58916497.

It can be written as a sum of positive squares in 4 ways, for example, as 8767521 + 70694464 = 2961^2 + 8408^2 .

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

It is not a de Polignac number, because 79461985 - 2⁵ = 79461953 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (79461989) 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, 967 + ... + 12643.

It is an arithmetic number, because the mean of its divisors is an integer number (11929077).

Almost surely, 2^79461985 is an apocalyptic number.

It is an amenable number.

79461985 is a deficient number, since it is larger than the sum of its proper divisors (15970631).

79461985 is a wasteful number, since it uses less digits than its factorization.

79461985 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 13043.

The product of its digits is 544320, while the sum is 49.

The square root of 79461985 is about 8914.1452198178. The cubic root of 79461985 is about 429.9188327057.

The spelling of 79461985 in words is "seventy-nine million, four hundred sixty-one thousand, nine hundred eighty-five".