5381999 has 4 divisors (see below), whose sum is σ = 6150864. Its totient is φ = 4613136.

The previous prime is 5381989. The next prime is 5382001. The reversal of 5381999 is 9991835.

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 5381999 - 2⁸ = 5381743 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (5381939) 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, 384422 + ... + 384435.

It is an arithmetic number, because the mean of its divisors is an integer number (1537716).

Almost surely, 2^5381999 is an apocalyptic number.

5381999 is a deficient number, since it is larger than the sum of its proper divisors (768865).

5381999 is an equidigital number, since it uses as much as digits as its factorization.

5381999 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 768864.

The product of its digits is 87480, while the sum is 44.

The square root of 5381999 is about 2319.9135759765. The cubic root of 5381999 is about 175.2459019272.

The spelling of 5381999 in words is "five million, three hundred eighty-one thousand, nine hundred ninety-nine".