79865610 has 128 divisors (see below), whose sum is σ = 222732288. Its totient is φ = 18144000.

The previous prime is 79865567. The next prime is 79865627. The reversal of 79865610 is 1656897.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 378405 + ... + 378615.

It is an arithmetic number, because the mean of its divisors is an integer number (1740096).

Almost surely, 2^79865610 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 79865610, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (111366144).

79865610 is an abundant number, since it is smaller than the sum of its proper divisors (142866678).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

79865610 is a wasteful number, since it uses less digits than its factorization.

79865610 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 300.

The product of its (nonzero) digits is 90720, while the sum is 42.

The square root of 79865610 is about 8936.7561228893. The cubic root of 79865610 is about 430.6455240424.

The spelling of 79865610 in words is "seventy-nine million, eight hundred sixty-five thousand, six hundred ten".