3099725 has 6 divisors (see below), whose sum is σ = 3843690. Its totient is φ = 2479760.

The previous prime is 3099713. The next prime is 3099727. The reversal of 3099725 is 5279903.

It can be written as a sum of positive squares in 3 ways, for example, as 68644 + 3031081 = 262^2 + 1741^2 .

It is not a de Polignac number, because 3099725 - 2⁴ = 3099709 is a prime.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (3099727) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 61970 + ... + 62019.

It is an arithmetic number, because the mean of its divisors is an integer number (640615).

Almost surely, 2^3099725 is an apocalyptic number.

It is an amenable number.

3099725 is a deficient number, since it is larger than the sum of its proper divisors (743965).

3099725 is a wasteful number, since it uses less digits than its factorization.

3099725 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 123999 (or 123994 counting only the distinct ones).

The product of its (nonzero) digits is 17010, while the sum is 35.

The square root of 3099725 is about 1760.6035896817. The cubic root of 3099725 is about 145.8056618699.

The spelling of 3099725 in words is "three million, ninety-nine thousand, seven hundred twenty-five".