102688913 has 8 divisors (see below), whose sum is σ = 106521600. Its totient is φ = 98875728.

The previous prime is 102688903. The next prime is 102688919. The reversal of 102688913 is 319886201.

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

It is a cyclic number.

It is not a de Polignac number, because 102688913 - 2⁴ = 102688897 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (102688919) by changing a digit.

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 7 ways as a sum of consecutive naturals, for example, 6320 + ... + 15662.

It is an arithmetic number, because the mean of its divisors is an integer number (13315200).

Almost surely, 2^102688913 is an apocalyptic number.

It is an amenable number.

102688913 is a deficient number, since it is larger than the sum of its proper divisors (3832687).

102688913 is an equidigital number, since it uses as much as digits as its factorization.

102688913 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 9751.

The product of its (nonzero) digits is 20736, while the sum is 38.

The square root of 102688913 is about 10133.5538188732. The cubic root of 102688913 is about 468.2824180524.

The spelling of 102688913 in words is "one hundred two million, six hundred eighty-eight thousand, nine hundred thirteen".