102909717 has 16 divisors (see below), whose sum is σ = 152848000. Its totient is φ = 68431392.

The previous prime is 102909701. The next prime is 102909727. The reversal of 102909717 is 717909201.

It is not a de Polignac number, because 102909717 - 2⁴ = 102909701 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (102909727) 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 15 ways as a sum of consecutive naturals, for example, 6384 + ... + 15702.

It is an arithmetic number, because the mean of its divisors is an integer number (9553000).

Almost surely, 2^102909717 is an apocalyptic number.

It is an amenable number.

102909717 is a deficient number, since it is larger than the sum of its proper divisors (49938283).

102909717 is an equidigital number, since it uses as much as digits as its factorization.

102909717 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 9737 (or 9731 counting only the distinct ones).

The product of its (nonzero) digits is 7938, while the sum is 36.

The square root of 102909717 is about 10144.4426658146. The cubic root of 102909717 is about 468.6178148880.

The spelling of 102909717 in words is "one hundred two million, nine hundred nine thousand, seven hundred seventeen".