80927969 has 4 divisors (see below), whose sum is σ = 80946096. Its totient is φ = 80909844.

The previous prime is 80927947. The next prime is 80927983. The reversal of 80927969 is 96972908.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 80927969 - 2²⁴ = 64150753 is a prime.

It is a super-2 number, since 2×80927969² = 13098672332929922, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (80927909) 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, 2882 + ... + 13044.

It is an arithmetic number, because the mean of its divisors is an integer number (20236524).

Almost surely, 2^80927969 is an apocalyptic number.

It is an amenable number.

80927969 is a deficient number, since it is larger than the sum of its proper divisors (18127).

80927969 is a wasteful number, since it uses less digits than its factorization.

80927969 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 18126.

The product of its (nonzero) digits is 489888, while the sum is 50.

The square root of 80927969 is about 8995.9973877275. The cubic root of 80927969 is about 432.5465778965.

It can be divided in two parts, 8092 and 7969, that added together give a palindrome (16061).

The spelling of 80927969 in words is "eighty million, nine hundred twenty-seven thousand, nine hundred sixty-nine".