102928815 has 48 divisors (see below), whose sum is σ = 195605280. Its totient is φ = 49655040.

The previous prime is 102928769. The next prime is 102928823. The reversal of 102928815 is 518829201.

It is not a de Polignac number, because 102928815 - 2⁶ = 102928751 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 102928815.

It is a congruent number.

It is an unprimeable number.

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 47 ways as a sum of consecutive naturals, for example, 132769 + ... + 133541.

It is an arithmetic number, because the mean of its divisors is an integer number (4075110).

Almost surely, 2^102928815 is an apocalyptic number.

102928815 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

102928815 is a deficient number, since it is larger than the sum of its proper divisors (92676465).

102928815 is a wasteful number, since it uses less digits than its factorization.

102928815 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1064 (or 1061 counting only the distinct ones).

The product of its (nonzero) digits is 11520, while the sum is 36.

The square root of 102928815 is about 10145.3839257073. The cubic root of 102928815 is about 468.6468018153.

The spelling of 102928815 in words is "one hundred two million, nine hundred twenty-eight thousand, eight hundred fifteen".