79699291 has 4 divisors (see below), whose sum is σ = 91084912. Its totient is φ = 68313672.

The previous prime is 79699273. The next prime is 79699327. The reversal of 79699291 is 19299697.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 19299697 = 107 ⋅180371.

It is not a de Polignac number, because 79699291 - 2⁵ = 79699259 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (79699391) 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, 5692800 + ... + 5692813.

It is an arithmetic number, because the mean of its divisors is an integer number (22771228).

Almost surely, 2^79699291 is an apocalyptic number.

79699291 is a deficient number, since it is larger than the sum of its proper divisors (11385621).

79699291 is a wasteful number, since it uses less digits than its factorization.

79699291 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 11385620.

The product of its digits is 551124, while the sum is 52.

The square root of 79699291 is about 8927.4459393491. The cubic root of 79699291 is about 430.3463785590.

The spelling of 79699291 in words is "seventy-nine million, six hundred ninety-nine thousand, two hundred ninety-one".