3646674 has 16 divisors (see below), whose sum is σ = 8103840. Its totient is φ = 1215540.

The previous prime is 3646661. The next prime is 3646681. The reversal of 3646674 is 4766463.

3646674 is a `hidden beast` number, since 3 + 646 + 6 + 7 + 4 = 666.

It is an Ulam 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, 33712 + ... + 33819.

It is an arithmetic number, because the mean of its divisors is an integer number (506490).

Almost surely, 2^3646674 is an apocalyptic number.

3646674 is an abundant number, since it is smaller than the sum of its proper divisors (4457166).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

3646674 is a wasteful number, since it uses less digits than its factorization.

3646674 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 67542 (or 67536 counting only the distinct ones).

The product of its digits is 72576, while the sum is 36.

The square root of 3646674 is about 1909.6266650840. The cubic root of 3646674 is about 153.9213912638.

The spelling of 3646674 in words is "three million, six hundred forty-six thousand, six hundred seventy-four".