79710975 has 18 divisors (see below), whose sum is σ = 142771616. Its totient is φ = 42512400.

The previous prime is 79710973. The next prime is 79710997. The reversal of 79710975 is 57901797.

It is not a de Polignac number, because 79710975 - 2¹ = 79710973 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (45).

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 79710975.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (79710971) by changing a digit.

It is a polite number, since it can be written in 17 ways as a sum of consecutive naturals, for example, 176911 + ... + 177360.

Almost surely, 2^79710975 is an apocalyptic number.

79710975 is a gapful number since it is divisible by the number (75) formed by its first and last digit.

79710975 is a deficient number, since it is larger than the sum of its proper divisors (63060641).

79710975 is a wasteful number, since it uses less digits than its factorization.

79710975 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 354287 (or 354279 counting only the distinct ones).

The product of its (nonzero) digits is 138915, while the sum is 45.

The square root of 79710975 is about 8928.1003018559. The cubic root of 79710975 is about 430.3674072755.

The spelling of 79710975 in words is "seventy-nine million, seven hundred ten thousand, nine hundred seventy-five".