16970725 has 6 divisors (see below), whose sum is σ = 21043730. Its totient is φ = 13576560.

The previous prime is 16970719. The next prime is 16970731. The reversal of 16970725 is 52707961.

It is an interprime number because it is at equal distance from previous prime (16970719) and next prime (16970731).

It can be written as a sum of positive squares in 3 ways, for example, as 2477476 + 14493249 = 1574^2 + 3807^2 .

It is not a de Polignac number, because 16970725 - 2⁵ = 16970693 is a prime.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 339390 + ... + 339439.

Almost surely, 2^16970725 is an apocalyptic number.

It is an amenable number.

16970725 is a deficient number, since it is larger than the sum of its proper divisors (4073005).

16970725 is an equidigital number, since it uses as much as digits as its factorization.

16970725 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 678839 (or 678834 counting only the distinct ones).

The product of its (nonzero) digits is 26460, while the sum is 37.

The square root of 16970725 is about 4119.5539807120. The cubic root of 16970725 is about 256.9804776563.

The spelling of 16970725 in words is "sixteen million, nine hundred seventy thousand, seven hundred twenty-five".