14377991 has 2 divisors, whose sum is σ = 14377992. Its totient is φ = 14377990.

The previous prime is 14377981. The next prime is 14378027. The reversal of 14377991 is 19977341.

14377991 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a weak prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-14377991 is a prime.

It is a Sophie Germain prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (14377901) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 7188995 + 7188996.

It is an arithmetic number, because the mean of its divisors is an integer number (7188996).

Almost surely, 2^14377991 is an apocalyptic number.

14377991 is a deficient number, since it is larger than the sum of its proper divisors (1).

14377991 is an equidigital number, since it uses as much as digits as its factorization.

14377991 is an evil number, because the sum of its binary digits is even.

The product of its digits is 47628, while the sum is 41.

The square root of 14377991 is about 3791.8321429093. The cubic root of 14377991 is about 243.1640692297.

The spelling of 14377991 in words is "fourteen million, three hundred seventy-seven thousand, nine hundred ninety-one".