9725975 has 24 divisors (see below), whose sum is σ = 13912800. Its totient is φ = 6606720.

The previous prime is 9725959. The next prime is 9726001. The reversal of 9725975 is 5795279.

9725975 = T₃₈ + T₃₉ + ... + T₃₈₇.

It is not a de Polignac number, because 9725975 - 2⁴ = 9725959 is a prime.

It is a Smith number, since the sum of its digits (44) coincides with the sum of the digits of its prime factors.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 25889 + ... + 26261.

It is an arithmetic number, because the mean of its divisors is an integer number (579700).

Almost surely, 2^9725975 is an apocalyptic number.

9725975 is a deficient number, since it is larger than the sum of its proper divisors (4186825).

9725975 is a wasteful number, since it uses less digits than its factorization.

9725975 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 539 (or 534 counting only the distinct ones).

The product of its digits is 198450, while the sum is 44.

The square root of 9725975 is about 3118.6495474804. The cubic root of 9725975 is about 213.4573186074.

The spelling of 9725975 in words is "nine million, seven hundred twenty-five thousand, nine hundred seventy-five".