3646990 has 8 divisors (see below), whose sum is σ = 6564600. Its totient is φ = 1458792.

The previous prime is 3646963. The next prime is 3646997. The reversal of 3646990 is 996463.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (3646997) 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, 182340 + ... + 182359.

It is an arithmetic number, because the mean of its divisors is an integer number (820575).

Almost surely, 2^3646990 is an apocalyptic number.

3646990 is a deficient number, since it is larger than the sum of its proper divisors (2917610).

3646990 is a wasteful number, since it uses less digits than its factorization.

3646990 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 364706.

The product of its (nonzero) digits is 34992, while the sum is 37.

The square root of 3646990 is about 1909.7094019772. The cubic root of 3646990 is about 153.9258371191.

The spelling of 3646990 in words is "three million, six hundred forty-six thousand, nine hundred ninety".