2664931 has 2 divisors, whose sum is σ = 2664932. Its totient is φ = 2664930.

The previous prime is 2664929. The next prime is 2664943. The reversal of 2664931 is 1394662.

2664931 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 not a de Polignac number, because 2664931 - 2¹ = 2664929 is a prime.

It is a super-2 number, since 2×2664931² = 14203714469522, which contains 22 as substring.

Together with 2664929, it forms a pair of twin primes.

It is a junction number, because it is equal to n+sod(n) for n = 2664893 and 2664902.

It is not a weakly prime, because it can be changed into another prime (2664901) 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, 1332465 + 1332466.

It is an arithmetic number, because the mean of its divisors is an integer number (1332466).

2^2664931 is an apocalyptic number.

2664931 is a deficient number, since it is larger than the sum of its proper divisors (1).

2664931 is an equidigital number, since it uses as much as digits as its factorization.

2664931 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 7776, while the sum is 31.

The square root of 2664931 is about 1632.4616381404. The cubic root of 2664931 is about 138.6421622390.

The spelling of 2664931 in words is "two million, six hundred sixty-four thousand, nine hundred thirty-one".