16898225 has 6 divisors (see below), whose sum is σ = 20953830. Its totient is φ = 13518560.

The previous prime is 16898207. The next prime is 16898267. The reversal of 16898225 is 52289861.

It can be written as a sum of positive squares in 3 ways, for example, as 1437601 + 15460624 = 1199^2 + 3932^2 .

It is not a de Polignac number, because 16898225 - 2¹⁴ = 16881841 is a prime.

It is an unprimeable number.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 337940 + ... + 337989.

It is an arithmetic number, because the mean of its divisors is an integer number (3492305).

Almost surely, 2^16898225 is an apocalyptic number.

It is an amenable number.

16898225 is a deficient number, since it is larger than the sum of its proper divisors (4055605).

16898225 is an equidigital number, since it uses as much as digits as its factorization.

16898225 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 675939 (or 675934 counting only the distinct ones).

The product of its digits is 69120, while the sum is 41.

The square root of 16898225 is about 4110.7450662866. The cubic root of 16898225 is about 256.6140097372.

The spelling of 16898225 in words is "sixteen million, eight hundred ninety-eight thousand, two hundred twenty-five".