3899 has 4 divisors (see below), whose sum is σ = 4464. Its totient is φ = 3336.

The previous prime is 3889. The next prime is 3907. The reversal of 3899 is 9983.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 9983 = 67 ⋅149.

It is a cyclic number.

It is not a de Polignac number, because 3899 - 2⁸ = 3643 is a prime.

It is a Duffinian number.

3899 is a modest number, since divided by 99 gives 38 as remainder.

It is a plaindrome in base 10 and base 15.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (3889) 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, 272 + ... + 285.

It is an arithmetic number, because the mean of its divisors is an integer number (1116).

2³⁸⁹⁹ is an apocalyptic number.

3899 is a deficient number, since it is larger than the sum of its proper divisors (565).

3899 is an equidigital number, since it uses as much as digits as its factorization.

3899 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 564.

The product of its digits is 1944, while the sum is 29.

The square root of 3899 is about 62.4419730630. The cubic root of 3899 is about 15.7392637001.

Subtracting 3899 from its reverse (9983), we obtain a square (6084 = 78²).

The spelling of 3899 in words is "three thousand, eight hundred ninety-nine".