985383899 has 2 divisors, whose sum is σ = 985383900. Its totient is φ = 985383898.

The previous prime is 985383877. The next prime is 985383923. The reversal of 985383899 is 998383589.

It is a happy number.

It is a weak prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-985383899 is a prime.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (985383809) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 492691949 + 492691950.

It is an arithmetic number, because the mean of its divisors is an integer number (492691950).

Almost surely, 2^985383899 is an apocalyptic number.

985383899 is a deficient number, since it is larger than the sum of its proper divisors (1).

985383899 is an equidigital number, since it uses as much as digits as its factorization.

985383899 is an evil number, because the sum of its binary digits is even.

The product of its digits is 16796160, while the sum is 62.

The square root of 985383899 is about 31390.8250767641. The cubic root of 985383899 is about 995.1040349794.

The spelling of 985383899 in words is "nine hundred eighty-five million, three hundred eighty-three thousand, eight hundred ninety-nine".