80880657 has 16 divisors (see below), whose sum is σ = 126694848. Its totient is φ = 45247680.

The previous prime is 80880649. The next prime is 80880661. The reversal of 80880657 is 75608808.

It is a happy number.

It is not a de Polignac number, because 80880657 - 2³ = 80880649 is a prime.

It is not an unprimeable number, because it can be changed into a prime (80880617) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 93838 + ... + 94695.

It is an arithmetic number, because the mean of its divisors is an integer number (7918428).

Almost surely, 2^80880657 is an apocalyptic number.

It is an amenable number.

80880657 is a deficient number, since it is larger than the sum of its proper divisors (45814191).

80880657 is a wasteful number, since it uses less digits than its factorization.

80880657 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 188560.

The product of its (nonzero) digits is 107520, while the sum is 42.

The square root of 80880657 is about 8993.3673893598. The cubic root of 80880657 is about 432.4622698662.

The spelling of 80880657 in words is "eighty million, eight hundred eighty thousand, six hundred fifty-seven".