4003899 has 4 divisors (see below), whose sum is σ = 5338536. Its totient is φ = 2669264.

The previous prime is 4003877. The next prime is 4003913. The reversal of 4003899 is 9983004.

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

It is a cyclic number.

It is not a de Polignac number, because 4003899 - 2⁹ = 4003387 is a prime.

It is a D-number.

It is not an unprimeable number, because it can be changed into a prime (4003819) 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, 667314 + ... + 667319.

It is an arithmetic number, because the mean of its divisors is an integer number (1334634).

Almost surely, 2^4003899 is an apocalyptic number.

4003899 is a deficient number, since it is larger than the sum of its proper divisors (1334637).

4003899 is a wasteful number, since it uses less digits than its factorization.

4003899 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1334636.

The product of its (nonzero) digits is 7776, while the sum is 33.

The square root of 4003899 is about 2000.9745125813. The cubic root of 4003899 is about 158.7916657534.

The spelling of 4003899 in words is "four million, three thousand, eight hundred ninety-nine".