79164993 has 4 divisors (see below), whose sum is σ = 105553328. Its totient is φ = 52776660.

The previous prime is 79164991. The next prime is 79164997. The reversal of 79164993 is 39946197.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is not a de Polignac number, because 79164993 - 2¹ = 79164991 is a prime.

It is a super-2 number, since 2×79164993² = 12534192233380098, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (79164991) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 13194163 + ... + 13194168.

It is an arithmetic number, because the mean of its divisors is an integer number (26388332).

Almost surely, 2^79164993 is an apocalyptic number.

It is an amenable number.

79164993 is a deficient number, since it is larger than the sum of its proper divisors (26388335).

79164993 is a wasteful number, since it uses less digits than its factorization.

79164993 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 26388334.

The product of its digits is 367416, while the sum is 48.

The square root of 79164993 is about 8897.4711575818. The cubic root of 79164993 is about 429.3825517085.

Subtracting from 79164993 its reverse (39946197), we obtain a triangular number (39218796 = T₈₈₅₆).

The spelling of 79164993 in words is "seventy-nine million, one hundred sixty-four thousand, nine hundred ninety-three".