13925617 has 2 divisors, whose sum is σ = 13925618. Its totient is φ = 13925616.

The previous prime is 13925573. The next prime is 13925623. The reversal of 13925617 is 71652931.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 11840481 + 2085136 = 3441^2 + 1444^2 .

It is a cyclic number.

It is not a de Polignac number, because 13925617 - 2¹⁹ = 13401329 is a prime.

It is not a weakly prime, because it can be changed into another prime (13925627) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 6962808 + 6962809.

It is an arithmetic number, because the mean of its divisors is an integer number (6962809).

Almost surely, 2^13925617 is an apocalyptic number.

It is an amenable number.

13925617 is a deficient number, since it is larger than the sum of its proper divisors (1).

13925617 is an equidigital number, since it uses as much as digits as its factorization.

13925617 is an evil number, because the sum of its binary digits is even.

The product of its digits is 11340, while the sum is 34.

The square root of 13925617 is about 3731.7043023262. The cubic root of 13925617 is about 240.5866262976.

It can be divided in two parts, 13 and 925617, that multiplied together give a palindrome (12033021).

The spelling of 13925617 in words is "thirteen million, nine hundred twenty-five thousand, six hundred seventeen".