102688870 has 8 divisors (see below), whose sum is σ = 184839984. Its totient is φ = 41075544.

The previous prime is 102688849. The next prime is 102688871. The reversal of 102688870 is 78886201.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (102688871) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 5134434 + ... + 5134453.

It is an arithmetic number, because the mean of its divisors is an integer number (23104998).

Almost surely, 2^102688870 is an apocalyptic number.

102688870 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

102688870 is a deficient number, since it is larger than the sum of its proper divisors (82151114).

102688870 is a wasteful number, since it uses less digits than its factorization.

102688870 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 10268894.

The product of its (nonzero) digits is 43008, while the sum is 40.

The square root of 102688870 is about 10133.5516972086. The cubic root of 102688870 is about 468.2823526894.

The spelling of 102688870 in words is "one hundred two million, six hundred eighty-eight thousand, eight hundred seventy".