79656461 has 4 divisors (see below), whose sum is σ = 79730172. Its totient is φ = 79582752.

The previous prime is 79656433. The next prime is 79656463. The reversal of 79656461 is 16465697.

It is a happy number.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 16465697 = 1117 ⋅14741.

It can be written as a sum of positive squares in 2 ways, for example, as 43428100 + 36228361 = 6590^2 + 6019^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-79656461 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 (79656463) 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, 35210 + ... + 37403.

It is an arithmetic number, because the mean of its divisors is an integer number (19932543).

Almost surely, 2^79656461 is an apocalyptic number.

It is an amenable number.

79656461 is a deficient number, since it is larger than the sum of its proper divisors (73711).

79656461 is a wasteful number, since it uses less digits than its factorization.

79656461 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 73710.

The product of its digits is 272160, while the sum is 44.

The square root of 79656461 is about 8925.0468346110. The cubic root of 79656461 is about 430.2692760827.

The spelling of 79656461 in words is "seventy-nine million, six hundred fifty-six thousand, four hundred sixty-one".