899942339 has 2 divisors, whose sum is σ = 899942340. Its totient is φ = 899942338.

The previous prime is 899942327. The next prime is 899942341. The reversal of 899942339 is 933249998.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 899942339 - 2¹² = 899938243 is a prime.

Together with 899942341, it forms a pair of twin primes.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (899942389) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 449971169 + 449971170.

It is an arithmetic number, because the mean of its divisors is an integer number (449971170).

Almost surely, 2^899942339 is an apocalyptic number.

899942339 is a deficient number, since it is larger than the sum of its proper divisors (1).

899942339 is an equidigital number, since it uses as much as digits as its factorization.

899942339 is an evil number, because the sum of its binary digits is even.

The product of its digits is 3779136, while the sum is 56.

The square root of 899942339 is about 29999.0389679403. The cubic root of 899942339 is about 965.4687652455.

The spelling of 899942339 in words is "eight hundred ninety-nine million, nine hundred forty-two thousand, three hundred thirty-nine".