79861485 has 32 divisors (see below), whose sum is σ = 139812480. Its totient is φ = 38604800.

The previous prime is 79861469. The next prime is 79861499. The reversal of 79861485 is 58416897.

It is not a de Polignac number, because 79861485 - 2⁴ = 79861469 is a prime.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 85501 + ... + 86429.

It is an arithmetic number, because the mean of its divisors is an integer number (4369140).

Almost surely, 2^79861485 is an apocalyptic number.

It is an amenable number.

79861485 is a deficient number, since it is larger than the sum of its proper divisors (59950995).

79861485 is a wasteful number, since it uses less digits than its factorization.

79861485 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1469.

The product of its digits is 483840, while the sum is 48.

The square root of 79861485 is about 8936.5253314697. The cubic root of 79861485 is about 430.6381097400.

The spelling of 79861485 in words is "seventy-nine million, eight hundred sixty-one thousand, four hundred eighty-five".