102989907 has 16 divisors (see below), whose sum is σ = 156702880. Its totient is φ = 66803616.

The previous prime is 102989897. The next prime is 102989911. The reversal of 102989907 is 709989201.

It is not a de Polignac number, because 102989907 - 2⁴ = 102989891 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (102989917) 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, 50548 + ... + 52545.

It is an arithmetic number, because the mean of its divisors is an integer number (9793930).

Almost surely, 2^102989907 is an apocalyptic number.

102989907 is a deficient number, since it is larger than the sum of its proper divisors (53712973).

102989907 is a wasteful number, since it uses less digits than its factorization.

102989907 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 103139 (or 103133 counting only the distinct ones).

The product of its (nonzero) digits is 81648, while the sum is 45.

The square root of 102989907 is about 10148.3943064901. The cubic root of 102989907 is about 468.7395031249.

The spelling of 102989907 in words is "one hundred two million, nine hundred eighty-nine thousand, nine hundred seven".