9902225 has 12 divisors (see below), whose sum is σ = 12320640. Its totient is φ = 7894800.

The previous prime is 9902219. The next prime is 9902239. The reversal of 9902225 is 5222099.

It is not a de Polignac number, because 9902225 - 2⁴ = 9902209 is a prime.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 10316 + ... + 11234.

It is an arithmetic number, because the mean of its divisors is an integer number (1026720).

Almost surely, 2^9902225 is an apocalyptic number.

It is an amenable number.

9902225 is a deficient number, since it is larger than the sum of its proper divisors (2418415).

9902225 is a wasteful number, since it uses less digits than its factorization.

9902225 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1360 (or 1355 counting only the distinct ones).

The product of its (nonzero) digits is 3240, while the sum is 29.

The square root of 9902225 is about 3146.7801003566. The cubic root of 9902225 is about 214.7390018414.

The spelling of 9902225 in words is "nine million, nine hundred two thousand, two hundred twenty-five".