79132691 has 8 divisors (see below), whose sum is σ = 86637168. Its totient is φ = 71680000.

The previous prime is 79132687. The next prime is 79132693. The reversal of 79132691 is 19623197.

It is a happy number.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a 14-Lehmer number, since φ(79132691) divides (79132691-1)¹⁴.

It is a cyclic number.

It is not a de Polignac number, because 79132691 - 2² = 79132687 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (79132693) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 9710 + ... + 15891.

It is an arithmetic number, because the mean of its divisors is an integer number (10829646).

Almost surely, 2^79132691 is an apocalyptic number.

79132691 is a deficient number, since it is larger than the sum of its proper divisors (7504477).

79132691 is a wasteful number, since it uses less digits than its factorization.

79132691 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 25893.

The product of its digits is 20412, while the sum is 38.

The square root of 79132691 is about 8895.6557374934. The cubic root of 79132691 is about 429.3241428860.

The spelling of 79132691 in words is "seventy-nine million, one hundred thirty-two thousand, six hundred ninety-one".