14400839 has 2 divisors, whose sum is σ = 14400840. Its totient is φ = 14400838.

The previous prime is 14400811. The next prime is 14400857. The reversal of 14400839 is 93800441.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 14400839 - 2¹⁶ = 14335303 is a prime.

It is a super-3 number, since 3×14400839³ (a number of 22 digits) contains 333 as substring.

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 (14400889) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 7200419 + 7200420.

It is an arithmetic number, because the mean of its divisors is an integer number (7200420).

Almost surely, 2^14400839 is an apocalyptic number.

14400839 is a deficient number, since it is larger than the sum of its proper divisors (1).

14400839 is an equidigital number, since it uses as much as digits as its factorization.

14400839 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 3456, while the sum is 29.

The square root of 14400839 is about 3794.8437385484. The cubic root of 14400839 is about 243.2928047011.

The spelling of 14400839 in words is "fourteen million, four hundred thousand, eight hundred thirty-nine".