9099725 has 6 divisors (see below), whose sum is σ = 11283690. Its totient is φ = 7279760.

The previous prime is 9099721. The next prime is 9099731. The reversal of 9099725 is 5279909.

It can be written as a sum of positive squares in 3 ways, for example, as 320356 + 8779369 = 566^2 + 2963^2 .

It is not a de Polignac number, because 9099725 - 2² = 9099721 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (9099721) by changing a digit.

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, 181970 + ... + 182019.

It is an arithmetic number, because the mean of its divisors is an integer number (1880615).

Almost surely, 2^9099725 is an apocalyptic number.

It is an amenable number.

9099725 is a deficient number, since it is larger than the sum of its proper divisors (2183965).

9099725 is a wasteful number, since it uses less digits than its factorization.

9099725 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 363999 (or 363994 counting only the distinct ones).

The product of its (nonzero) digits is 51030, while the sum is 41.

The square root of 9099725 is about 3016.5750446491. The cubic root of 9099725 is about 208.7738447907.

The spelling of 9099725 in words is "nine million, ninety-nine thousand, seven hundred twenty-five".