80031965 has 8 divisors (see below), whose sum is σ = 103426008. Its totient is φ = 59100480.

The previous prime is 80031949. The next prime is 80031983. The reversal of 80031965 is 56913008.

It can be written as a sum of positive squares in 4 ways, for example, as 1833316 + 78198649 = 1354^2 + 8843^2 .

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

It is not a de Polignac number, because 80031965 - 2⁴ = 80031949 is a prime.

It is a super-2 number, since 2×80031965² = 12810230843522450, which contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is an unprimeable number.

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, 615566 + ... + 615695.

It is an arithmetic number, because the mean of its divisors is an integer number (12928251).

Almost surely, 2^80031965 is an apocalyptic number.

It is an amenable number.

80031965 is a deficient number, since it is larger than the sum of its proper divisors (23394043).

80031965 is a wasteful number, since it uses less digits than its factorization.

80031965 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1231279.

The product of its (nonzero) digits is 6480, while the sum is 32.

The square root of 80031965 is about 8946.0586293630. The cubic root of 80031965 is about 430.9443191187.

The spelling of 80031965 in words is "eighty million, thirty-one thousand, nine hundred sixty-five".