13977751 has 2 divisors, whose sum is σ = 13977752. Its totient is φ = 13977750.

The previous prime is 13977737. The next prime is 13977763. The reversal of 13977751 is 15777931.

13977751 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 13977751 - 2¹³ = 13969559 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (13977251) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 6988875 + 6988876.

It is an arithmetic number, because the mean of its divisors is an integer number (6988876).

Almost surely, 2^13977751 is an apocalyptic number.

13977751 is a deficient number, since it is larger than the sum of its proper divisors (1).

13977751 is an equidigital number, since it uses as much as digits as its factorization.

13977751 is an evil number, because the sum of its binary digits is even.

The product of its digits is 46305, while the sum is 40.

The square root of 13977751 is about 3738.6830569065. The cubic root of 13977751 is about 240.8864843065.

The spelling of 13977751 in words is "thirteen million, nine hundred seventy-seven thousand, seven hundred fifty-one".