3674639 has 2 divisors, whose sum is σ = 3674640. Its totient is φ = 3674638.

The previous prime is 3674623. The next prime is 3674653. The reversal of 3674639 is 9364763.

It is a happy number.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 3674639 - 2⁴ = 3674623 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (3674609) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1837319 + 1837320.

It is an arithmetic number, because the mean of its divisors is an integer number (1837320).

Almost surely, 2^3674639 is an apocalyptic number.

3674639 is a deficient number, since it is larger than the sum of its proper divisors (1).

3674639 is an equidigital number, since it uses as much as digits as its factorization.

3674639 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 81648, while the sum is 38.

The square root of 3674639 is about 1916.9347928399. The cubic root of 3674639 is about 154.3138452608.

The spelling of 3674639 in words is "three million, six hundred seventy-four thousand, six hundred thirty-nine".