3599639 has 2 divisors, whose sum is σ = 3599640. Its totient is φ = 3599638.

The previous prime is 3599621. The next prime is 3599641. The reversal of 3599639 is 9369953.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 3599639 - 2⁸ = 3599383 is a prime.

Together with 3599641, it forms a pair of twin primes.

It is a Chen prime.

It is a self number, because there is not a number n which added to its sum of digits gives 3599639.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (3599839) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1799819 + 1799820.

It is an arithmetic number, because the mean of its divisors is an integer number (1799820).

Almost surely, 2^3599639 is an apocalyptic number.

3599639 is a deficient number, since it is larger than the sum of its proper divisors (1).

3599639 is an equidigital number, since it uses as much as digits as its factorization.

3599639 is an evil number, because the sum of its binary digits is even.

The product of its digits is 196830, while the sum is 44.

The square root of 3599639 is about 1897.2714618631. The cubic root of 3599639 is about 153.2567633870.

The spelling of 3599639 in words is "three million, five hundred ninety-nine thousand, six hundred thirty-nine".