16897425 has 12 divisors (see below), whose sum is σ = 27937200. Its totient is φ = 9011920.

The previous prime is 16897417. The next prime is 16897457. The reversal of 16897425 is 52479861.

It is not a de Polignac number, because 16897425 - 2³ = 16897417 is a prime.

It is a Smith number, since the sum of its digits (42) coincides with the sum of the digits of its prime factors.

It is a Curzon number.

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, 112575 + ... + 112724.

It is an arithmetic number, because the mean of its divisors is an integer number (2328100).

Almost surely, 2^16897425 is an apocalyptic number.

16897425 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

It is an amenable number.

16897425 is a deficient number, since it is larger than the sum of its proper divisors (11039775).

16897425 is a wasteful number, since it uses less digits than its factorization.

16897425 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 225312 (or 225307 counting only the distinct ones).

The product of its digits is 120960, while the sum is 42.

The square root of 16897425 is about 4110.6477591737. The cubic root of 16897425 is about 256.6099601117.

The spelling of 16897425 in words is "sixteen million, eight hundred ninety-seven thousand, four hundred twenty-five".