80700965 has 4 divisors (see below), whose sum is σ = 96841164. Its totient is φ = 64560768.

The previous prime is 80700953. The next prime is 80700973. The reversal of 80700965 is 56900708.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 39150049 + 41550916 = 6257^2 + 6446^2 .

It is a cyclic number.

It is not a de Polignac number, because 80700965 - 2⁶ = 80700901 is a prime.

It is a Duffinian number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 8070092 + ... + 8070101.

It is an arithmetic number, because the mean of its divisors is an integer number (24210291).

Almost surely, 2^80700965 is an apocalyptic number.

It is an amenable number.

80700965 is a deficient number, since it is larger than the sum of its proper divisors (16140199).

80700965 is a wasteful number, since it uses less digits than its factorization.

80700965 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 16140198.

The product of its (nonzero) digits is 15120, while the sum is 35.

The square root of 80700965 is about 8983.3715830973. The cubic root of 80700965 is about 432.1417662440.

The spelling of 80700965 in words is "eighty million, seven hundred thousand, nine hundred sixty-five".