3493631 has 4 divisors (see below), whose sum is σ = 3645552. Its totient is φ = 3341712.

The previous prime is 3493597. The next prime is 3493661. The reversal of 3493631 is 1363943.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 3493631 - 2¹⁰ = 3492607 is a prime.

It is a super-2 number, since 2×3493631² = 24410915128322, 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 = 3493594 and 3493603.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (3493661) 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, 75926 + ... + 75971.

It is an arithmetic number, because the mean of its divisors is an integer number (911388).

Almost surely, 2^3493631 is an apocalyptic number.

3493631 is a deficient number, since it is larger than the sum of its proper divisors (151921).

3493631 is a wasteful number, since it uses less digits than its factorization.

3493631 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 151920.

The product of its digits is 5832, while the sum is 29.

The square root of 3493631 is about 1869.1257314584. The cubic root of 3493631 is about 151.7372972693.

The spelling of 3493631 in words is "three million, four hundred ninety-three thousand, six hundred thirty-one".