880331581 has 2 divisors, whose sum is σ = 880331582. Its totient is φ = 880331580.

The previous prime is 880331567. The next prime is 880331591. The reversal of 880331581 is 185133088.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 572644900 + 307686681 = 23930^2 + 17541^2 .

It is a cyclic number.

It is not a de Polignac number, because 880331581 - 2⁵ = 880331549 is a prime.

It is a super-2 number, since 2×880331581² = 1549967385011919122, which contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 880331581.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (880331591) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 440165790 + 440165791.

It is an arithmetic number, because the mean of its divisors is an integer number (440165791).

Almost surely, 2^880331581 is an apocalyptic number.

It is an amenable number.

880331581 is a deficient number, since it is larger than the sum of its proper divisors (1).

880331581 is an equidigital number, since it uses as much as digits as its factorization.

880331581 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 23040, while the sum is 37.

The square root of 880331581 is about 29670.3822186368. The cubic root of 880331581 is about 958.4043156766.

The spelling of 880331581 in words is "eight hundred eighty million, three hundred thirty-one thousand, five hundred eighty-one".