880977981 has 16 divisors (see below), whose sum is σ = 1279212480. Its totient is φ = 536046720.

The previous prime is 880977971. The next prime is 880977989. The reversal of 880977981 is 189779088.

It is not a de Polignac number, because 880977981 - 2⁵ = 880977949 is a prime.

It is a super-2 number, since 2×880977981² = 1552244406013672722, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (880977989) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 123435 + ... + 130376.

It is an arithmetic number, because the mean of its divisors is an integer number (79950780).

Almost surely, 2^880977981 is an apocalyptic number.

It is an amenable number.

880977981 is a deficient number, since it is larger than the sum of its proper divisors (398234499).

880977981 is a wasteful number, since it uses less digits than its factorization.

880977981 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 253916.

The product of its (nonzero) digits is 2032128, while the sum is 57.

The square root of 880977981 is about 29681.2732375146. The cubic root of 880977981 is about 958.6388337435.

The spelling of 880977981 in words is "eight hundred eighty million, nine hundred seventy-seven thousand, nine hundred eighty-one".