79269121 has 4 divisors (see below), whose sum is σ = 83441200. Its totient is φ = 75097044.

The previous prime is 79269101. The next prime is 79269137. The reversal of 79269121 is 12196297.

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, and also an emirpimes, since its reverse is a distinct semiprime: 12196297 = 2789 ⋅4373.

It is not a de Polignac number, because 79269121 - 2⁷ = 79268993 is a prime.

It is a super-2 number, since 2×79269121² = 12567187088225282, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (79269101) by changing a digit.

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 3 ways as a sum of consecutive naturals, for example, 2086011 + ... + 2086048.

It is an arithmetic number, because the mean of its divisors is an integer number (20860300).

Almost surely, 2^79269121 is an apocalyptic number.

It is an amenable number.

79269121 is a deficient number, since it is larger than the sum of its proper divisors (4172079).

79269121 is a wasteful number, since it uses less digits than its factorization.

79269121 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4172078.

The product of its digits is 13608, while the sum is 37.

The square root of 79269121 is about 8903.3207849656. The cubic root of 79269121 is about 429.5707289817.

The spelling of 79269121 in words is "seventy-nine million, two hundred sixty-nine thousand, one hundred twenty-one".