13755897 has 24 divisors (see below), whose sum is σ = 20659080. Its totient is φ = 8812800.

The previous prime is 13755893. The next prime is 13755899. The reversal of 13755897 is 79855731.

13755897 is a `hidden beast` number, since 1 + 3 + 7 + 558 + 97 = 666.

It can be written as a sum of positive squares in 4 ways, for example, as 11532816 + 2223081 = 3396^2 + 1491^2 .

It is not a de Polignac number, because 13755897 - 2² = 13755893 is a prime.

It is not an unprimeable number, because it can be changed into a prime (13755893) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 33429 + ... + 33837.

It is an arithmetic number, because the mean of its divisors is an integer number (860795).

Almost surely, 2^13755897 is an apocalyptic number.

It is an amenable number.

13755897 is a deficient number, since it is larger than the sum of its proper divisors (6903183).

13755897 is a wasteful number, since it uses less digits than its factorization.

13755897 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 553 (or 550 counting only the distinct ones).

The product of its digits is 264600, while the sum is 45.

The square root of 13755897 is about 3708.8943096292. The cubic root of 13755897 is about 239.6052364466.

The spelling of 13755897 in words is "thirteen million, seven hundred fifty-five thousand, eight hundred ninety-seven".