42899 has 2 divisors, whose sum is σ = 42900. Its totient is φ = 42898.

The previous prime is 42863. The next prime is 42901. The reversal of 42899 is 99824.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 42899 - 2⁸ = 42643 is a prime.

Together with 42901, it forms a pair of twin primes.

It is a Chen prime.

It is a plaindrome in base 13.

It is not a weakly prime, because it can be changed into another prime (42829) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 21449 + 21450.

It is an arithmetic number, because the mean of its divisors is an integer number (21450).

2⁴²⁸⁹⁹ is an apocalyptic number.

42899 is a deficient number, since it is larger than the sum of its proper divisors (1).

42899 is an equidigital number, since it uses as much as digits as its factorization.

42899 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 5184, while the sum is 32.

The square root of 42899 is about 207.1207377353. The cubic root of 42899 is about 35.0065293941.

The spelling of 42899 in words is "forty-two thousand, eight hundred ninety-nine".