3664873 has 2 divisors, whose sum is σ = 3664874. Its totient is φ = 3664872.

The previous prime is 3664861. The next prime is 3664879. The reversal of 3664873 is 3784663.

It is a happy number.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 3636649 + 28224 = 1907^2 + 168^2 .

It is a cyclic number.

It is not a de Polignac number, because 3664873 - 2⁵ = 3664841 is a prime.

It is a super-2 number, since 2×3664873² = 26862588212258, which contains 22 as substring.

3664873 is a lucky number.

It is not a weakly prime, because it can be changed into another prime (3664879) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1832436 + 1832437.

It is an arithmetic number, because the mean of its divisors is an integer number (1832437).

Almost surely, 2^3664873 is an apocalyptic number.

It is an amenable number.

3664873 is a deficient number, since it is larger than the sum of its proper divisors (1).

3664873 is an equidigital number, since it uses as much as digits as its factorization.

3664873 is an evil number, because the sum of its binary digits is even.

The product of its digits is 72576, while the sum is 37.

The square root of 3664873 is about 1914.3858022875. The cubic root of 3664873 is about 154.1770185728.

The spelling of 3664873 in words is "three million, six hundred sixty-four thousand, eight hundred seventy-three".