79961070 has 128 divisors (see below), whose sum is σ = 231662592. Its totient is φ = 17280000.

The previous prime is 79961027. The next prime is 79961093. The reversal of 79961070 is 7016997.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 318445 + ... + 318695.

It is an arithmetic number, because the mean of its divisors is an integer number (1809864).

Almost surely, 2^79961070 is an apocalyptic number.

79961070 is a gapful number since it is divisible by the number (70) formed by its first and last digit.

It is a practical number, because each smaller number is the sum of distinct divisors of 79961070, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (115831296).

79961070 is an abundant number, since it is smaller than the sum of its proper divisors (151701522).

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

79961070 is a wasteful number, since it uses less digits than its factorization.

79961070 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 346.

The product of its (nonzero) digits is 23814, while the sum is 39.

The square root of 79961070 is about 8942.0953920208. The cubic root of 79961070 is about 430.8170332139.

The spelling of 79961070 in words is "seventy-nine million, nine hundred sixty-one thousand, seventy".