3998833 has 4 divisors (see below), whose sum is σ = 4021108. Its totient is φ = 3976560.

The previous prime is 3998831. The next prime is 3998837. The reversal of 3998833 is 3388993.

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 1617984 + 2380849 = 1272^2 + 1543^2 .

It is a cyclic number.

It is not a de Polignac number, because 3998833 - 2¹ = 3998831 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 3998833.

It is not an unprimeable number, because it can be changed into a prime (3998831) 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, 10866 + ... + 11227.

It is an arithmetic number, because the mean of its divisors is an integer number (1005277).

Almost surely, 2^3998833 is an apocalyptic number.

It is an amenable number.

3998833 is a deficient number, since it is larger than the sum of its proper divisors (22275).

3998833 is a wasteful number, since it uses less digits than its factorization.

3998833 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 22274.

The product of its digits is 139968, while the sum is 43.

The square root of 3998833 is about 1999.7082287174. The cubic root of 3998833 is about 158.7246662201.

The spelling of 3998833 in words is "three million, nine hundred ninety-eight thousand, eight hundred thirty-three".