13977853 has 2 divisors, whose sum is σ = 13977854. Its totient is φ = 13977852.

The previous prime is 13977829. The next prime is 13977857. The reversal of 13977853 is 35877931.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 11009124 + 2968729 = 3318^2 + 1723^2 .

It is an emirp because it is prime and its reverse (35877931) is a distict prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-13977853 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (13977857) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 6988926 + 6988927.

It is an arithmetic number, because the mean of its divisors is an integer number (6988927).

Almost surely, 2^13977853 is an apocalyptic number.

It is an amenable number.

13977853 is a deficient number, since it is larger than the sum of its proper divisors (1).

13977853 is an equidigital number, since it uses as much as digits as its factorization.

13977853 is an evil number, because the sum of its binary digits is even.

The product of its digits is 158760, while the sum is 43.

The square root of 13977853 is about 3738.6966980487. The cubic root of 13977853 is about 240.8870702463.

The spelling of 13977853 in words is "thirteen million, nine hundred seventy-seven thousand, eight hundred fifty-three".