3507631 has 4 divisors (see below), whose sum is σ = 3521232. Its totient is φ = 3494032.

The previous prime is 3507601. The next prime is 3507641. The reversal of 3507631 is 1367053.

It is a happy number.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 1367053 = 379 ⋅3607.

It is a cyclic number.

It is not a de Polignac number, because 3507631 - 2¹¹ = 3505583 is a prime.

It is a super-2 number, since 2×3507631² = 24606950464322, which contains 22 as substring.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 3507596 and 3507605.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (3507601) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 6406 + ... + 6931.

It is an arithmetic number, because the mean of its divisors is an integer number (880308).

Almost surely, 2^3507631 is an apocalyptic number.

3507631 is a deficient number, since it is larger than the sum of its proper divisors (13601).

3507631 is a wasteful number, since it uses less digits than its factorization.

3507631 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 13600.

The product of its (nonzero) digits is 1890, while the sum is 25.

The square root of 3507631 is about 1872.8670534771. The cubic root of 3507631 is about 151.9397123563.

The spelling of 3507631 in words is "three million, five hundred seven thousand, six hundred thirty-one".