2339731 has 2 divisors, whose sum is σ = 2339732. Its totient is φ = 2339730.

The previous prime is 2339719. The next prime is 2339741. The reversal of 2339731 is 1379332.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 2339731 - 2¹¹ = 2337683 is a prime.

It is a super-2 number, since 2×2339731² = 10948682304722, which contains 22 as substring.

2339731 is a lucky number.

It is equal to p₁₇₂₁₈₉ and since 2339731 and 172189 have the same sum of digits, it is a Honaker prime.

It is a self number, because there is not a number n which added to its sum of digits gives 2339731.

It is not a weakly prime, because it can be changed into another prime (2339741) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1169865 + 1169866.

It is an arithmetic number, because the mean of its divisors is an integer number (1169866).

2^2339731 is an apocalyptic number.

2339731 is a deficient number, since it is larger than the sum of its proper divisors (1).

2339731 is an equidigital number, since it uses as much as digits as its factorization.

2339731 is an evil number, because the sum of its binary digits is even.

The product of its digits is 3402, while the sum is 28.

The square root of 2339731 is about 1529.6179261502. The cubic root of 2339731 is about 132.7563519339.

The spelling of 2339731 in words is "two million, three hundred thirty-nine thousand, seven hundred thirty-one".