80771869 has 8 divisors (see below), whose sum is σ = 86418080. Its totient is φ = 75265200.

The previous prime is 80771843. The next prime is 80771893. The reversal of 80771869 is 96817708.

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

It is a cyclic number.

It is not a de Polignac number, because 80771869 - 2¹⁵ = 80739101 is a prime.

It is a super-2 number, since 2×80771869² = 13048189643506322, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (80771809) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 33687 + ... + 36004.

It is an arithmetic number, because the mean of its divisors is an integer number (10802260).

Almost surely, 2^80771869 is an apocalyptic number.

It is an amenable number.

80771869 is a deficient number, since it is larger than the sum of its proper divisors (5646211).

80771869 is a wasteful number, since it uses less digits than its factorization.

80771869 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 69771.

The product of its (nonzero) digits is 169344, while the sum is 46.

The square root of 80771869 is about 8987.3171191407. The cubic root of 80771869 is about 432.2682893513.

The spelling of 80771869 in words is "eighty million, seven hundred seventy-one thousand, eight hundred sixty-nine".