13897835 has 16 divisors (see below), whose sum is σ = 20064000. Its totient is φ = 9027936.

The previous prime is 13897831. The next prime is 13897841. The reversal of 13897835 is 53879831.

It is a happy number.

It is a cyclic number.

It is not a de Polignac number, because 13897835 - 2² = 13897831 is a prime.

It is not an unprimeable number, because it can be changed into a prime (13897831) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 9785 + ... + 11114.

It is an arithmetic number, because the mean of its divisors is an integer number (1254000).

Almost surely, 2^13897835 is an apocalyptic number.

13897835 is a deficient number, since it is larger than the sum of its proper divisors (6166165).

13897835 is a wasteful number, since it uses less digits than its factorization.

13897835 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 20930.

The product of its digits is 181440, while the sum is 44.

The square root of 13897835 is about 3727.9800160409. The cubic root of 13897835 is about 240.4265274071.

The spelling of 13897835 in words is "thirteen million, eight hundred ninety-seven thousand, eight hundred thirty-five".