102808317 has 16 divisors (see below), whose sum is σ = 141373440. Its totient is φ = 66419952.

The previous prime is 102808283. The next prime is 102808319. The reversal of 102808317 is 713808201.

It is a happy number.

It is not a de Polignac number, because 102808317 - 2¹⁵ = 102775549 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (102808319) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 10984 + ... + 18062.

It is an arithmetic number, because the mean of its divisors is an integer number (8835840).

Almost surely, 2^102808317 is an apocalyptic number.

It is an amenable number.

102808317 is a deficient number, since it is larger than the sum of its proper divisors (38565123).

102808317 is a wasteful number, since it uses less digits than its factorization.

102808317 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7232.

The product of its (nonzero) digits is 2688, while the sum is 30.

The square root of 102808317 is about 10139.4436237892. The cubic root of 102808317 is about 468.4638499587.

The spelling of 102808317 in words is "one hundred two million, eight hundred eight thousand, three hundred seventeen".