102928686 has 64 divisors (see below), whose sum is σ = 242956800. Its totient is φ = 28463616.

The previous prime is 102928673. The next prime is 102928687. The reversal of 102928686 is 686829201.

It is a Harshad number since it is a multiple of its sum of digits (42).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (102928687) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 180610 + ... + 181178.

It is an arithmetic number, because the mean of its divisors is an integer number (3796200).

Almost surely, 2^102928686 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 102928686, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (121478400).

102928686 is an abundant number, since it is smaller than the sum of its proper divisors (140028114).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

102928686 is a wasteful number, since it uses less digits than its factorization.

102928686 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 713.

The product of its (nonzero) digits is 82944, while the sum is 42.

The square root of 102928686 is about 10145.3775681342. The cubic root of 102928686 is about 468.6466060312.

The spelling of 102928686 in words is "one hundred two million, nine hundred twenty-eight thousand, six hundred eighty-six".