80697969 has 24 divisors (see below), whose sum is σ = 127617984. Its totient is φ = 48732000.

The previous prime is 80697943. The next prime is 80697983. The reversal of 80697969 is 96979608.

It is a de Polignac number, because none of the positive numbers 2^k-80697969 is a prime.

It is a super-2 number, since 2×80697969² = 13024324401449922, which contains 22 as substring.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (80697989) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 29479 + ... + 32099.

It is an arithmetic number, because the mean of its divisors is an integer number (5317416).

Almost surely, 2^80697969 is an apocalyptic number.

It is an amenable number.

80697969 is a deficient number, since it is larger than the sum of its proper divisors (46920015).

80697969 is a wasteful number, since it uses less digits than its factorization.

80697969 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2949 (or 2946 counting only the distinct ones).

The product of its (nonzero) digits is 1469664, while the sum is 54.

The square root of 80697969 is about 8983.2048290129. The cubic root of 80697969 is about 432.1364184651.

The spelling of 80697969 in words is "eighty million, six hundred ninety-seven thousand, nine hundred sixty-nine".