14397731 has 2 divisors, whose sum is σ = 14397732. Its totient is φ = 14397730.

The previous prime is 14397707. The next prime is 14397737. The reversal of 14397731 is 13779341.

It is a strong prime.

It is an emirp because it is prime and its reverse (13779341) is a distict prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-14397731 is a prime.

It is a super-2 number, since 2×14397731² = 414589315896722, which contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 14397691 and 14397700.

It is not a weakly prime, because it can be changed into another prime (14397737) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 7198865 + 7198866.

It is an arithmetic number, because the mean of its divisors is an integer number (7198866).

Almost surely, 2^14397731 is an apocalyptic number.

14397731 is a deficient number, since it is larger than the sum of its proper divisors (1).

14397731 is an equidigital number, since it uses as much as digits as its factorization.

14397731 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 15876, while the sum is 35.

The square root of 14397731 is about 3794.4342134237. The cubic root of 14397731 is about 243.2753008959.

The spelling of 14397731 in words is "fourteen million, three hundred ninety-seven thousand, seven hundred thirty-one".