79765961 has 8 divisors (see below), whose sum is σ = 87223584. Its totient is φ = 72342720.

The previous prime is 79765957. The next prime is 79765997. The reversal of 79765961 is 16956797.

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

It is a cyclic number.

It is not a de Polignac number, because 79765961 - 2² = 79765957 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (79765061) 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, 3611 + ... + 13136.

It is an arithmetic number, because the mean of its divisors is an integer number (10902948).

Almost surely, 2^79765961 is an apocalyptic number.

It is an amenable number.

79765961 is a deficient number, since it is larger than the sum of its proper divisors (7457623).

79765961 is a wasteful number, since it uses less digits than its factorization.

79765961 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 17191.

The product of its digits is 714420, while the sum is 50.

The square root of 79765961 is about 8931.1791494740. The cubic root of 79765961 is about 430.4663428070.

The spelling of 79765961 in words is "seventy-nine million, seven hundred sixty-five thousand, nine hundred sixty-one".