9902625 has 16 divisors (see below), whose sum is σ = 16478592. Its totient is φ = 5281200.

The previous prime is 9902621. The next prime is 9902663. The reversal of 9902625 is 5262099.

It is not a de Polignac number, because 9902625 - 2² = 9902621 is a prime.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (9902621) 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, 12829 + ... + 13578.

It is an arithmetic number, because the mean of its divisors is an integer number (1029912).

Almost surely, 2^9902625 is an apocalyptic number.

It is an amenable number.

9902625 is a deficient number, since it is larger than the sum of its proper divisors (6575967).

9902625 is a wasteful number, since it uses less digits than its factorization.

9902625 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 26425 (or 26415 counting only the distinct ones).

The product of its (nonzero) digits is 9720, while the sum is 33.

The square root of 9902625 is about 3146.8436567456. The cubic root of 9902625 is about 214.7418932604.

The spelling of 9902625 in words is "nine million, nine hundred two thousand, six hundred twenty-five".