13829725 has 24 divisors (see below), whose sum is σ = 21109760. Its totient is φ = 8752320.

The previous prime is 13829713. The next prime is 13829741. The reversal of 13829725 is 52792831.

13829725 is digitally balanced in base 2 and base 3, because in such bases it contains all the possibile digits an equal number of times.

It is not a de Polignac number, because 13829725 - 2⁹ = 13829213 is a prime.

It is a super-2 number, since 2×13829725² = 382522587151250, which contains 22 as substring.

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, 765 + ... + 5314.

Almost surely, 2^13829725 is an apocalyptic number.

It is an amenable number.

13829725 is a deficient number, since it is larger than the sum of its proper divisors (7280035).

13829725 is a wasteful number, since it uses less digits than its factorization.

13829725 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6109 (or 6104 counting only the distinct ones).

The product of its digits is 30240, while the sum is 37.

The square root of 13829725 is about 3718.8338225847. The cubic root of 13829725 is about 240.0331262146.

The spelling of 13829725 in words is "thirteen million, eight hundred twenty-nine thousand, seven hundred twenty-five".