2664631 has 8 divisors (see below), whose sum is σ = 2890944. Its totient is φ = 2446080.

The previous prime is 2664601. The next prime is 2664643. The reversal of 2664631 is 1364662.

2664631 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-2664631 is a prime.

It is a super-2 number, since 2×2664631² = 14200516732322, which contains 22 as substring.

It is a Duffinian number.

2664631 is a lucky number.

It is a self number, because there is not a number n which added to its sum of digits gives 2664631.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2664601) 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 in 7 ways as a sum of consecutive naturals, for example, 1215 + ... + 2608.

It is an arithmetic number, because the mean of its divisors is an integer number (361368).

2^2664631 is an apocalyptic number.

2664631 is a deficient number, since it is larger than the sum of its proper divisors (226313).

2664631 is a wasteful number, since it uses less digits than its factorization.

2664631 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3881.

The product of its digits is 5184, while the sum is 28.

The square root of 2664631 is about 1632.3697497810. The cubic root of 2664631 is about 138.6369595766.

The spelling of 2664631 in words is "two million, six hundred sixty-four thousand, six hundred thirty-one".