2659931 has 2 divisors, whose sum is σ = 2659932. Its totient is φ = 2659930.

The previous prime is 2659903. The next prime is 2659949. The reversal of 2659931 is 1399562.

2659931 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 2659931 - 2¹⁴ = 2643547 is a prime.

It is a super-2 number, since 2×2659931² = 14150465849522, which contains 22 as substring.

It is a Chen prime.

It is a junction number, because it is equal to n+sod(n) for n = 2659891 and 2659900.

It is not a weakly prime, because it can be changed into another prime (2659331) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1329965 + 1329966.

It is an arithmetic number, because the mean of its divisors is an integer number (1329966).

2^2659931 is an apocalyptic number.

2659931 is a deficient number, since it is larger than the sum of its proper divisors (1).

2659931 is an equidigital number, since it uses as much as digits as its factorization.

2659931 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 14580, while the sum is 35.

The square root of 2659931 is about 1630.9294895856. The cubic root of 2659931 is about 138.5554001675. Note that the first 3 decimals are identical.

The spelling of 2659931 in words is "two million, six hundred fifty-nine thousand, nine hundred thirty-one".