79669759 has 8 divisors (see below), whose sum is σ = 87417792. Its totient is φ = 72153120.

The previous prime is 79669753. The next prime is 79669763. The reversal of 79669759 is 95796697.

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

It is not a de Polignac number, because 79669759 - 2¹⁹ = 79145471 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (79669753) 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, 57127 + ... + 58504.

It is an arithmetic number, because the mean of its divisors is an integer number (10927224).

Almost surely, 2^79669759 is an apocalyptic number.

79669759 is a deficient number, since it is larger than the sum of its proper divisors (7748033).

79669759 is a wasteful number, since it uses less digits than its factorization.

79669759 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 115697.

The product of its digits is 6429780, while the sum is 58.

The square root of 79669759 is about 8925.7917856065. The cubic root of 79669759 is about 430.2932180722.

The spelling of 79669759 in words is "seventy-nine million, six hundred sixty-nine thousand, seven hundred fifty-nine".