3628631 has 2 divisors, whose sum is σ = 3628632. Its totient is φ = 3628630.

The previous prime is 3628621. The next prime is 3628657. The reversal of 3628631 is 1368263.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 3628631 - 2¹⁴ = 3612247 is a prime.

It is a super-3 number, since 3×3628631³ (a number of 21 digits) contains 333 as substring. Note that it is a super-d number also for d = 2.

It is a Chen prime.

It is an Ulam number.

It is a junction number, because it is equal to n+sod(n) for n = 3628594 and 3628603.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (3628621) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1814315 + 1814316.

It is an arithmetic number, because the mean of its divisors is an integer number (1814316).

Almost surely, 2^3628631 is an apocalyptic number.

3628631 is a deficient number, since it is larger than the sum of its proper divisors (1).

3628631 is an equidigital number, since it uses as much as digits as its factorization.

3628631 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 5184, while the sum is 29.

The square root of 3628631 is about 1904.8965851195. The cubic root of 3628631 is about 153.6671142028.

The spelling of 3628631 in words is "three million, six hundred twenty-eight thousand, six hundred thirty-one".