3537631 has 2 divisors, whose sum is σ = 3537632. Its totient is φ = 3537630.

The previous prime is 3537601. The next prime is 3537641. The reversal of 3537631 is 1367353.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 3537631 - 2⁹ = 3537119 is a prime.

It is a super-2 number, since 2×3537631² = 25029666184322, which contains 22 as substring.

3537631 is a lucky number.

It is a self number, because there is not a number n which added to its sum of digits gives 3537631.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (3537601) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1768815 + 1768816.

It is an arithmetic number, because the mean of its divisors is an integer number (1768816).

Almost surely, 2^3537631 is an apocalyptic number.

3537631 is a deficient number, since it is larger than the sum of its proper divisors (1).

3537631 is an equidigital number, since it uses as much as digits as its factorization.

3537631 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 5670, while the sum is 28.

The square root of 3537631 is about 1880.8591122144. The cubic root of 3537631 is about 152.3716522892.

The spelling of 3537631 in words is "three million, five hundred thirty-seven thousand, six hundred thirty-one".