102989965 has 16 divisors (see below), whose sum is σ = 134064000. Its totient is φ = 75500352.

The previous prime is 102989963. The next prime is 102989983. The reversal of 102989965 is 569989201.

It is not a de Polignac number, because 102989965 - 2¹ = 102989963 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (102989963) 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, 3336 + ... + 14734.

It is an arithmetic number, because the mean of its divisors is an integer number (8379000).

Almost surely, 2^102989965 is an apocalyptic number.

It is an amenable number.

102989965 is a deficient number, since it is larger than the sum of its proper divisors (31074035).

102989965 is a wasteful number, since it uses less digits than its factorization.

102989965 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 11556.

The product of its (nonzero) digits is 349920, while the sum is 49.

The square root of 102989965 is about 10148.3971640846. The cubic root of 102989965 is about 468.7395911170.

The spelling of 102989965 in words is "one hundred two million, nine hundred eighty-nine thousand, nine hundred sixty-five".