30899 has 6 divisors (see below), whose sum is σ = 34356. Its totient is φ = 27560.

The previous prime is 30893. The next prime is 30911. The reversal of 30899 is 99803.

It is not a de Polignac number, because 30899 - 2⁸ = 30643 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (30893) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 557 + ... + 609.

It is an arithmetic number, because the mean of its divisors is an integer number (5726).

2³⁰⁸⁹⁹ is an apocalyptic number.

30899 is a deficient number, since it is larger than the sum of its proper divisors (3457).

30899 is an equidigital number, since it uses as much as digits as its factorization.

30899 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 117 (or 64 counting only the distinct ones).

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

The square root of 30899 is about 175.7811138888. The cubic root of 30899 is about 31.3796533365.

It can be divided in two parts, 30 and 899, that added together give a palindrome (929).

The spelling of 30899 in words is "thirty thousand, eight hundred ninety-nine".