13947925 has 12 divisors (see below), whose sum is σ = 17342020. Its totient is φ = 11128320.

The previous prime is 13947911. The next prime is 13947937. The reversal of 13947925 is 52974931.

It can be written as a sum of positive squares in 6 ways, for example, as 508369 + 13439556 = 713^2 + 3666^2 .

It is not a de Polignac number, because 13947925 - 2⁹ = 13947413 is a prime.

It is a super-2 number, since 2×13947925² = 389089223611250, which contains 22 as substring.

It is a hoax number, since the sum of its digits (40) coincides with the sum of the digits of its distinct prime factors.

Its product of digits (68040) is a multiple of the sum of its prime factors (1512).

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 16411 + ... + 17239.

Almost surely, 2^13947925 is an apocalyptic number.

It is an amenable number.

13947925 is a deficient number, since it is larger than the sum of its proper divisors (3394095).

13947925 is an equidigital number, since it uses as much as digits as its factorization.

13947925 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1512 (or 1507 counting only the distinct ones).

The product of its digits is 68040, while the sum is 40.

The square root of 13947925 is about 3734.6920890483. The cubic root of 13947925 is about 240.7150261891.

The spelling of 13947925 in words is "thirteen million, nine hundred forty-seven thousand, nine hundred twenty-five".