3626521 has 2 divisors, whose sum is σ = 3626522. Its totient is φ = 3626520.

The previous prime is 3626501. The next prime is 3626531. The reversal of 3626521 is 1256263.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 3222025 + 404496 = 1795^2 + 636^2 .

It is a cyclic number.

It is not a de Polignac number, because 3626521 - 2⁹ = 3626009 is a prime.

It is equal to p₂₅₈₅₄₁ and since 3626521 and 258541 have the same sum of digits, it is a Honaker prime.

It is not a weakly prime, because it can be changed into another prime (3626501) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1813260 + 1813261.

It is an arithmetic number, because the mean of its divisors is an integer number (1813261).

Almost surely, 2^3626521 is an apocalyptic number.

It is an amenable number.

3626521 is a deficient number, since it is larger than the sum of its proper divisors (1).

3626521 is an equidigital number, since it uses as much as digits as its factorization.

3626521 is an evil number, because the sum of its binary digits is even.

The product of its digits is 2160, while the sum is 25.

The square root of 3626521 is about 1904.3426687443. The cubic root of 3626521 is about 153.6373233094.

The spelling of 3626521 in words is "three million, six hundred twenty-six thousand, five hundred twenty-one".