850238899 has 4 divisors (see below), whose sum is σ = 850309000. Its totient is φ = 850168800.

The previous prime is 850238887. The next prime is 850238929. The reversal of 850238899 is 998832058.

It is a happy number.

It is a semiprime because it is the product of two primes, and also a brilliant number, because the two primes have the same length.

It is a cyclic number.

It is not a de Polignac number, because 850238899 - 2⁹ = 850238387 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (850238869) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 11649 + ... + 42850.

It is an arithmetic number, because the mean of its divisors is an integer number (212577250).

Almost surely, 2^850238899 is an apocalyptic number.

850238899 is a deficient number, since it is larger than the sum of its proper divisors (70101).

850238899 is a wasteful number, since it uses less digits than its factorization.

850238899 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 70100.

The product of its (nonzero) digits is 1244160, while the sum is 52.

The square root of 850238899 is about 29158.8562704369. The cubic root of 850238899 is about 947.3569745336.

The spelling of 850238899 in words is "eight hundred fifty million, two hundred thirty-eight thousand, eight hundred ninety-nine".