10399725 has 96 divisors (see below), whose sum is σ = 22855680. Its totient is φ = 4536000.

The previous prime is 10399723. The next prime is 10399751. The reversal of 10399725 is 52799301.

It is not a de Polignac number, because 10399725 - 2¹ = 10399723 is a prime.

It is a Curzon number.

It is a nialpdrome in base 15.

It is a self number, because there is not a number n which added to its sum of digits gives 10399725.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (10399723) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 95 ways as a sum of consecutive naturals, for example, 146440 + ... + 146510.

It is an arithmetic number, because the mean of its divisors is an integer number (238080).

Almost surely, 2^10399725 is an apocalyptic number.

10399725 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

It is an amenable number.

10399725 is an abundant number, since it is smaller than the sum of its proper divisors (12455955).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

10399725 is a wasteful number, since it uses less digits than its factorization.

10399725 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 128 (or 117 counting only the distinct ones).

The product of its (nonzero) digits is 17010, while the sum is 36.

The square root of 10399725 is about 3224.8604620975. The cubic root of 10399725 is about 218.2766526655.

The spelling of 10399725 in words is "ten million, three hundred ninety-nine thousand, seven hundred twenty-five".