79087669 has 8 divisors (see below), whose sum is σ = 82179000. Its totient is φ = 76020672.

The previous prime is 79087649. The next prime is 79087703. The reversal of 79087669 is 96678097.

It can be written as a sum of positive squares in 4 ways, for example, as 23882769 + 55204900 = 4887^2 + 7430^2 .

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

It is not a de Polignac number, because 79087669 - 2⁵ = 79087637 is a prime.

It is a super-2 number, since 2×79087669² = 12509718775707122, which contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (79087649) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 687 + ... + 12595.

It is an arithmetic number, because the mean of its divisors is an integer number (10272375).

Almost surely, 2^79087669 is an apocalyptic number.

It is an amenable number.

79087669 is a deficient number, since it is larger than the sum of its proper divisors (3091331).

79087669 is a wasteful number, since it uses less digits than its factorization.

79087669 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 12167.

The product of its (nonzero) digits is 1143072, while the sum is 52.

The square root of 79087669 is about 8893.1248163961. The cubic root of 79087669 is about 429.2427071010.

The spelling of 79087669 in words is "seventy-nine million, eighty-seven thousand, six hundred sixty-nine".