3649001 has 2 divisors, whose sum is σ = 3649002. Its totient is φ = 3649000.

The previous prime is 3648989. The next prime is 3649003. The reversal of 3649001 is 1009463.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 1893376 + 1755625 = 1376^2 + 1325^2 .

It is a cyclic number.

It is not a de Polignac number, because 3649001 - 2¹⁸ = 3386857 is a prime.

Together with 3649003, it forms a pair of twin primes.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (3649003) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1824500 + 1824501.

It is an arithmetic number, because the mean of its divisors is an integer number (1824501).

Almost surely, 2^3649001 is an apocalyptic number.

It is an amenable number.

3649001 is a deficient number, since it is larger than the sum of its proper divisors (1).

3649001 is an equidigital number, since it uses as much as digits as its factorization.

3649001 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 648, while the sum is 23.

The square root of 3649001 is about 1910.2358493129. The cubic root of 3649001 is about 153.9541241887.

The spelling of 3649001 in words is "three million, six hundred forty-nine thousand, one".