79682561 has 8 divisors (see below), whose sum is σ = 95858880. Its totient is φ = 64704528.

The previous prime is 79682543. The next prime is 79682591. The reversal of 79682561 is 16528697.

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

It is not a de Polignac number, because 79682561 - 2¹⁴ = 79666177 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (79682591) 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, 299426 + ... + 299691.

It is an arithmetic number, because the mean of its divisors is an integer number (11982360).

Almost surely, 2^79682561 is an apocalyptic number.

It is an amenable number.

79682561 is a deficient number, since it is larger than the sum of its proper divisors (16176319).

79682561 is a wasteful number, since it uses less digits than its factorization.

79682561 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 599143.

The product of its digits is 181440, while the sum is 44.

The square root of 79682561 is about 8926.5088920585. The cubic root of 79682561 is about 430.3162645364.

The spelling of 79682561 in words is "seventy-nine million, six hundred eighty-two thousand, five hundred sixty-one".