3990653 has 8 divisors (see below), whose sum is σ = 4124736. Its totient is φ = 3858400.

The previous prime is 3990641. The next prime is 3990689. The reversal of 3990653 is 3560993.

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

It is a cyclic number.

It is not a de Polignac number, because 3990653 - 2¹⁸ = 3728509 is a prime.

It is a super-2 number, since 2×3990653² = 31850622732818, which contains 22 as substring.

It is a Duffinian number.

It is a nialpdrome in base 13.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (3990353) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 5000 + ... + 5742.

It is an arithmetic number, because the mean of its divisors is an integer number (515592).

Almost surely, 2^3990653 is an apocalyptic number.

It is an amenable number.

3990653 is a deficient number, since it is larger than the sum of its proper divisors (134083).

3990653 is a wasteful number, since it uses less digits than its factorization.

3990653 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 915.

The product of its (nonzero) digits is 21870, while the sum is 35.

The square root of 3990653 is about 1997.6618833026. The cubic root of 3990653 is about 158.6163634486.

The spelling of 3990653 in words is "three million, nine hundred ninety thousand, six hundred fifty-three".