80813759 has 8 divisors (see below), whose sum is σ = 87318000. Its totient is φ = 74350656.

The previous prime is 80813741. The next prime is 80813771. The reversal of 80813759 is 95731808.

It is a happy number.

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 80813759 - 2²⁴ = 64036543 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (80813729) 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, 6134 + ... + 14115.

It is an arithmetic number, because the mean of its divisors is an integer number (10914750).

Almost surely, 2^80813759 is an apocalyptic number.

80813759 is a deficient number, since it is larger than the sum of its proper divisors (6504241).

80813759 is a wasteful number, since it uses less digits than its factorization.

80813759 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 20569.

The product of its (nonzero) digits is 60480, while the sum is 41.

The square root of 80813759 is about 8989.6473234493. The cubic root of 80813759 is about 432.3430042630.

The spelling of 80813759 in words is "eighty million, eight hundred thirteen thousand, seven hundred fifty-nine".