3799921 has 4 divisors (see below), whose sum is σ = 3892644. Its totient is φ = 3707200.

The previous prime is 3799919. The next prime is 3799927. The reversal of 3799921 is 1299973.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 429025 + 3370896 = 655^2 + 1836^2 .

It is a cyclic number.

It is not a de Polignac number, because 3799921 - 2¹ = 3799919 is a prime.

It is a super-3 number, since 3×3799921³ (a number of 21 digits) contains 333 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (3799927) 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, 46300 + ... + 46381.

It is an arithmetic number, because the mean of its divisors is an integer number (973161).

Almost surely, 2^3799921 is an apocalyptic number.

It is an amenable number.

3799921 is a deficient number, since it is larger than the sum of its proper divisors (92723).

3799921 is an equidigital number, since it uses as much as digits as its factorization.

3799921 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 92722.

The product of its digits is 30618, while the sum is 40.

The square root of 3799921 is about 1949.3386057840. The cubic root of 3799921 is about 156.0479936706.

The spelling of 3799921 in words is "three million, seven hundred ninety-nine thousand, nine hundred twenty-one".