899868043 has 2 divisors, whose sum is σ = 899868044. Its totient is φ = 899868042.

The previous prime is 899868037. The next prime is 899868071. The reversal of 899868043 is 340868998.

It is a weak prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-899868043 is a prime.

It is not a weakly prime, because it can be changed into another prime (899868023) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 449934021 + 449934022.

It is an arithmetic number, because the mean of its divisors is an integer number (449934022).

Almost surely, 2^899868043 is an apocalyptic number.

899868043 is a deficient number, since it is larger than the sum of its proper divisors (1).

899868043 is an equidigital number, since it uses as much as digits as its factorization.

899868043 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 2985984, while the sum is 55.

The square root of 899868043 is about 29997.8006360466. The cubic root of 899868043 is about 965.4421959724.

The spelling of 899868043 in words is "eight hundred ninety-nine million, eight hundred sixty-eight thousand, forty-three".