80869311 has 12 divisors (see below), whose sum is σ = 121890288. Its totient is φ = 51568704.

The previous prime is 80869291. The next prime is 80869333. The reversal of 80869311 is 11396808.

It is not a de Polignac number, because 80869311 - 2⁵ = 80869279 is a prime.

It is a super-2 number, since 2×80869311² = 13079690923229442, which contains 22 as substring.

It is a hoax number, since the sum of its digits (36) coincides with the sum of the digits of its distinct prime factors.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (80869351) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 195130 + ... + 195543.

It is an arithmetic number, because the mean of its divisors is an integer number (10157524).

Almost surely, 2^80869311 is an apocalyptic number.

80869311 is a deficient number, since it is larger than the sum of its proper divisors (41020977).

80869311 is a wasteful number, since it uses less digits than its factorization.

80869311 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 390702 (or 390699 counting only the distinct ones).

The product of its (nonzero) digits is 10368, while the sum is 36.

The square root of 80869311 is about 8992.7365690317. The cubic root of 80869311 is about 432.4420468753.

The spelling of 80869311 in words is "eighty million, eight hundred sixty-nine thousand, three hundred eleven".