100882989 has 20 divisors (see below), whose sum is σ = 158635840. Its totient is φ = 63714600.

The previous prime is 100882961. The next prime is 100883011. The reversal of 100882989 is 989288001.

It is a de Polignac number, because none of the positive numbers 2^k-100882989 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 (100882589) by changing a digit.

It is a polite number, since it can be written in 19 ways as a sum of consecutive naturals, for example, 31237 + ... + 34314.

It is an arithmetic number, because the mean of its divisors is an integer number (7931792).

Almost surely, 2^100882989 is an apocalyptic number.

100882989 is a gapful number since it is divisible by the number (19) formed by its first and last digit.

It is an amenable number.

100882989 is a deficient number, since it is larger than the sum of its proper divisors (57752851).

100882989 is an equidigital number, since it uses as much as digits as its factorization.

100882989 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 65582 (or 65573 counting only the distinct ones).

The product of its (nonzero) digits is 82944, while the sum is 45.

The square root of 100882989 is about 10044.0524192181. The cubic root of 100882989 is about 465.5210392589.

The spelling of 100882989 in words is "one hundred million, eight hundred eighty-two thousand, nine hundred eighty-nine".