102905387 has 8 divisors (see below), whose sum is σ = 116654160. Its totient is φ = 89989920.

The previous prime is 102905351. The next prime is 102905389. The reversal of 102905387 is 783509201.

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 102905387 - 2¹⁸ = 102643243 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (102905389) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 208064 + ... + 208557.

It is an arithmetic number, because the mean of its divisors is an integer number (14581770).

Almost surely, 2^102905387 is an apocalyptic number.

102905387 is a deficient number, since it is larger than the sum of its proper divisors (13748773).

102905387 is a wasteful number, since it uses less digits than its factorization.

102905387 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 416653.

The product of its (nonzero) digits is 15120, while the sum is 35.

The square root of 102905387 is about 10144.2292462266. The cubic root of 102905387 is about 468.6112423191.

The spelling of 102905387 in words is "one hundred two million, nine hundred five thousand, three hundred eighty-seven".