3644951 has 2 divisors, whose sum is σ = 3644952. Its totient is φ = 3644950.

The previous prime is 3644947. The next prime is 3644957. The reversal of 3644951 is 1594463.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 3644951 - 2² = 3644947 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (3644957) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1822475 + 1822476.

It is an arithmetic number, because the mean of its divisors is an integer number (1822476).

Almost surely, 2^3644951 is an apocalyptic number.

3644951 is a deficient number, since it is larger than the sum of its proper divisors (1).

3644951 is an equidigital number, since it uses as much as digits as its factorization.

3644951 is an evil number, because the sum of its binary digits is even.

The product of its digits is 12960, while the sum is 32.

The square root of 3644951 is about 1909.1754764819. The cubic root of 3644951 is about 153.8971455779.

The spelling of 3644951 in words is "three million, six hundred forty-four thousand, nine hundred fifty-one".