3523631 has 4 divisors (see below), whose sum is σ = 3537000. Its totient is φ = 3510264.

The previous prime is 3523627. The next prime is 3523649. The reversal of 3523631 is 1363253.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 1363253 = 431 ⋅3163.

It is a cyclic number.

It is not a de Polignac number, because 3523631 - 2² = 3523627 is a prime.

It is a super-2 number, since 2×3523631² = 24831950848322, 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 = 3523597 and 3523606.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (3523651) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 6281 + ... + 6818.

It is an arithmetic number, because the mean of its divisors is an integer number (884250).

Almost surely, 2^3523631 is an apocalyptic number.

3523631 is a deficient number, since it is larger than the sum of its proper divisors (13369).

3523631 is a wasteful number, since it uses less digits than its factorization.

3523631 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 13368.

The product of its digits is 1620, while the sum is 23.

The square root of 3523631 is about 1877.1337192646. The cubic root of 3523631 is about 152.1703854574.

Adding to 3523631 its reverse (1363253), we get a palindrome (4886884).

The spelling of 3523631 in words is "three million, five hundred twenty-three thousand, six hundred thirty-one".