3664723 has 2 divisors, whose sum is σ = 3664724. Its totient is φ = 3664722.

The previous prime is 3664721. The next prime is 3664747. The reversal of 3664723 is 3274663.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 3664723 - 2¹ = 3664721 is a prime.

Together with 3664721, it forms a pair of twin primes.

It is not a weakly prime, because it can be changed into another prime (3664721) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1832361 + 1832362.

It is an arithmetic number, because the mean of its divisors is an integer number (1832362).

Almost surely, 2^3664723 is an apocalyptic number.

3664723 is a deficient number, since it is larger than the sum of its proper divisors (1).

3664723 is an equidigital number, since it uses as much as digits as its factorization.

3664723 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 18144, while the sum is 31.

The square root of 3664723 is about 1914.3466248305. The cubic root of 3664723 is about 154.1749151012.

The spelling of 3664723 in words is "three million, six hundred sixty-four thousand, seven hundred twenty-three".