3699021 has 8 divisors (see below), whose sum is σ = 5146560. Its totient is φ = 2358752.

The previous prime is 3699011. The next prime is 3699023. The reversal of 3699021 is 1209963.

3699021 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

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 3699021 - 2⁶ = 3698957 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 3699021.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (3699023) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 26736 + ... + 26873.

It is an arithmetic number, because the mean of its divisors is an integer number (643320).

Almost surely, 2^3699021 is an apocalyptic number.

It is an amenable number.

3699021 is a deficient number, since it is larger than the sum of its proper divisors (1447539).

3699021 is a wasteful number, since it uses less digits than its factorization.

3699021 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 53635.

The product of its (nonzero) digits is 2916, while the sum is 30.

The square root of 3699021 is about 1923.2839103991. The cubic root of 3699021 is about 154.6543947317.

The spelling of 3699021 in words is "three million, six hundred ninety-nine thousand, twenty-one".