3622631 has 2 divisors, whose sum is σ = 3622632. Its totient is φ = 3622630.

The previous prime is 3622609. The next prime is 3622643. The reversal of 3622631 is 1362263.

It is a strong prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-3622631 is a prime.

It is a super-2 number, since 2×3622631² = 26246910724322, which contains 22 as substring.

It is a Sophie Germain prime.

It is a junction number, because it is equal to n+sod(n) for n = 3622597 and 3622606.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (3622601) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1811315 + 1811316.

It is an arithmetic number, because the mean of its divisors is an integer number (1811316).

Almost surely, 2^3622631 is an apocalyptic number.

3622631 is a deficient number, since it is larger than the sum of its proper divisors (1).

3622631 is an equidigital number, since it uses as much as digits as its factorization.

3622631 is an evil number, because the sum of its binary digits is even.

The product of its digits is 1296, while the sum is 23.

The square root of 3622631 is about 1903.3210449107. The cubic root of 3622631 is about 153.5823704584.

Adding to 3622631 its reverse (1362263), we get a palindrome (4984894).

The spelling of 3622631 in words is "three million, six hundred twenty-two thousand, six hundred thirty-one".