3644957 has 2 divisors, whose sum is σ = 3644958. Its totient is φ = 3644956.

The previous prime is 3644951. The next prime is 3644959. The reversal of 3644957 is 7594463.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 3644281 + 676 = 1909^2 + 26^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-3644957 is a prime.

Together with 3644959, 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 3644957.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (3644951) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1822478 + 1822479.

It is an arithmetic number, because the mean of its divisors is an integer number (1822479).

Almost surely, 2^3644957 is an apocalyptic number.

It is an amenable number.

3644957 is a deficient number, since it is larger than the sum of its proper divisors (1).

3644957 is an equidigital number, since it uses as much as digits as its factorization.

3644957 is an evil number, because the sum of its binary digits is even.

The product of its digits is 90720, while the sum is 38.

The square root of 3644957 is about 1909.1770478402. The cubic root of 3644957 is about 153.8972300219.

The spelling of 3644957 in words is "three million, six hundred forty-four thousand, nine hundred fifty-seven".