102408917 has 8 divisors (see below), whose sum is σ = 116091360. Its totient is φ = 89555760.

The previous prime is 102408899. The next prime is 102408919. The reversal of 102408917 is 719804201.

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 102408917 - 2¹⁸ = 102146773 is a prime.

It is a super-2 number, since 2×102408917² = 20975172562225778, which contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (102408919) 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, 207059 + ... + 207552.

It is an arithmetic number, because the mean of its divisors is an integer number (14511420).

Almost surely, 2^102408917 is an apocalyptic number.

It is an amenable number.

102408917 is a deficient number, since it is larger than the sum of its proper divisors (13682443).

102408917 is a wasteful number, since it uses less digits than its factorization.

102408917 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 414643.

The product of its (nonzero) digits is 4032, while the sum is 32.

The square root of 102408917 is about 10119.7290971646. The cubic root of 102408917 is about 467.8564176502.

The spelling of 102408917 in words is "one hundred two million, four hundred eight thousand, nine hundred seventeen".