16973725 has 6 divisors (see below), whose sum is σ = 21047450. Its totient is φ = 13578960.

The previous prime is 16973699. The next prime is 16973743. The reversal of 16973725 is 52737961.

It can be written as a sum of positive squares in 3 ways, for example, as 106276 + 16867449 = 326^2 + 4107^2 .

It is not a de Polignac number, because 16973725 - 2²¹ = 14876573 is a prime.

It is a congruent number.

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, 339450 + ... + 339499.

Almost surely, 2^16973725 is an apocalyptic number.

It is an amenable number.

16973725 is a deficient number, since it is larger than the sum of its proper divisors (4073725).

16973725 is an equidigital number, since it uses as much as digits as its factorization.

16973725 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 678959 (or 678954 counting only the distinct ones).

The product of its digits is 79380, while the sum is 40.

The square root of 16973725 is about 4119.9180817099. The cubic root of 16973725 is about 256.9956193392.

The spelling of 16973725 in words is "sixteen million, nine hundred seventy-three thousand, seven hundred twenty-five".