999002239 has 2 divisors, whose sum is σ = 999002240. Its totient is φ = 999002238.

The previous prime is 999002231. The next prime is 999002281. The reversal of 999002239 is 932200999.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 999002239 - 2³ = 999002231 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 999002195 and 999002204.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (999002231) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 499501119 + 499501120.

It is an arithmetic number, because the mean of its divisors is an integer number (499501120).

Almost surely, 2^999002239 is an apocalyptic number.

999002239 is a deficient number, since it is larger than the sum of its proper divisors (1).

999002239 is an equidigital number, since it uses as much as digits as its factorization.

999002239 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 78732, while the sum is 43.

The square root of 999002239 is about 31606.9966779509. The cubic root of 999002239 is about 999.6673023245.

The spelling of 999002239 in words is "nine hundred ninety-nine million, two thousand, two hundred thirty-nine".