3656390 has 8 divisors (see below), whose sum is σ = 6581520. Its totient is φ = 1462552.

The previous prime is 3656383. The next prime is 3656413. The reversal of 3656390 is 936563.

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

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 182810 + ... + 182829.

It is an arithmetic number, because the mean of its divisors is an integer number (822690).

Almost surely, 2^3656390 is an apocalyptic number.

3656390 is a deficient number, since it is larger than the sum of its proper divisors (2925130).

3656390 is a wasteful number, since it uses less digits than its factorization.

3656390 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 365646.

The product of its (nonzero) digits is 14580, while the sum is 32.

The square root of 3656390 is about 1912.1689255921. The cubic root of 3656390 is about 154.0579699675.

The spelling of 3656390 in words is "three million, six hundred fifty-six thousand, three hundred ninety".