3491644 has 24 divisors (see below), whose sum is σ = 6667920. Its totient is φ = 1590144.

The previous prime is 3491639. The next prime is 3491651. The reversal of 3491644 is 4461943.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 3912 + ... + 4720.

It is an arithmetic number, because the mean of its divisors is an integer number (277830).

Almost surely, 2^3491644 is an apocalyptic number.

It is an amenable number.

3491644 is a deficient number, since it is larger than the sum of its proper divisors (3176276).

3491644 is a wasteful number, since it uses less digits than its factorization.

3491644 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 909 (or 907 counting only the distinct ones).

The product of its digits is 10368, while the sum is 31.

The square root of 3491644 is about 1868.5941239338. The cubic root of 3491644 is about 151.7085249893.

Subtracting 3491644 from its reverse (4461943), we obtain a cube (970299 = 99³).

The spelling of 3491644 in words is "three million, four hundred ninety-one thousand, six hundred forty-four".