102928881 has 16 divisors (see below), whose sum is σ = 151522560. Its totient is φ = 61627920.

The previous prime is 102928873. The next prime is 102928883. The reversal of 102928881 is 188829201.

It is not a de Polignac number, because 102928881 - 2³ = 102928873 is a prime.

It is a super-2 number, since 2×102928881² = 21188709087824322, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (102928883) 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, 16051 + ... + 21528.

It is an arithmetic number, because the mean of its divisors is an integer number (9470160).

Almost surely, 2^102928881 is an apocalyptic number.

102928881 is a gapful number since it is divisible by the number (11) formed by its first and last digit.

It is an amenable number.

102928881 is a deficient number, since it is larger than the sum of its proper divisors (48593679).

102928881 is a wasteful number, since it uses less digits than its factorization.

102928881 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 37676.

The product of its (nonzero) digits is 18432, while the sum is 39.

The square root of 102928881 is about 10145.3871784176. The cubic root of 102928881 is about 468.6469019838.

The spelling of 102928881 in words is "one hundred two million, nine hundred twenty-eight thousand, eight hundred eighty-one".