80807917 has 8 divisors (see below), whose sum is σ = 83786240. Its totient is φ = 77852880.

The previous prime is 80807897. The next prime is 80807933. The reversal of 80807917 is 71970808.

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 80807917 - 2²³ = 72419309 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 80807917.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (80807957) 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, 1408 + ... + 12790.

It is an arithmetic number, because the mean of its divisors is an integer number (10473280).

Almost surely, 2^80807917 is an apocalyptic number.

It is an amenable number.

80807917 is a deficient number, since it is larger than the sum of its proper divisors (2978323).

80807917 is a wasteful number, since it uses less digits than its factorization.

80807917 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 11643.

The product of its (nonzero) digits is 28224, while the sum is 40.

The square root of 80807917 is about 8989.3223882560. The cubic root of 80807917 is about 432.3325860342.

The spelling of 80807917 in words is "eighty million, eight hundred seven thousand, nine hundred seventeen".