79164871 has 2 divisors, whose sum is σ = 79164872. Its totient is φ = 79164870.

The previous prime is 79164857. The next prime is 79164889. The reversal of 79164871 is 17846197.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 79164871 - 2²¹ = 77067719 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (79164821) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 39582435 + 39582436.

It is an arithmetic number, because the mean of its divisors is an integer number (39582436).

Almost surely, 2^79164871 is an apocalyptic number.

79164871 is a deficient number, since it is larger than the sum of its proper divisors (1).

79164871 is an equidigital number, since it uses as much as digits as its factorization.

79164871 is an evil number, because the sum of its binary digits is even.

The product of its digits is 84672, while the sum is 43.

The square root of 79164871 is about 8897.4643016985. The cubic root of 79164871 is about 429.3823311367.

The spelling of 79164871 in words is "seventy-nine million, one hundred sixty-four thousand, eight hundred seventy-one".