3642559 has 2 divisors, whose sum is σ = 3642560. Its totient is φ = 3642558.

The previous prime is 3642497. The next prime is 3642571. The reversal of 3642559 is 9552463.

It is a strong prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-3642559 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (3642959) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1821279 + 1821280.

It is an arithmetic number, because the mean of its divisors is an integer number (1821280).

Almost surely, 2^3642559 is an apocalyptic number.

3642559 is a deficient number, since it is larger than the sum of its proper divisors (1).

3642559 is an equidigital number, since it uses as much as digits as its factorization.

3642559 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 32400, while the sum is 34.

The square root of 3642559 is about 1908.5489252309. The cubic root of 3642559 is about 153.8634731976.

The spelling of 3642559 in words is "three million, six hundred forty-two thousand, five hundred fifty-nine".