849999992 has 16 divisors (see below), whose sum is σ = 1598194800. Its totient is φ = 423814720.

The previous prime is 849999977. The next prime is 850000013. The reversal of 849999992 is 299999948.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 145109 + ... + 150852.

It is an arithmetic number, because the mean of its divisors is an integer number (99887175).

Almost surely, 2^849999992 is an apocalyptic number.

It is an amenable number.

849999992 is a deficient number, since it is larger than the sum of its proper divisors (748194808).

849999992 is a wasteful number, since it uses less digits than its factorization.

849999992 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 296326 (or 296322 counting only the distinct ones).

The product of its digits is 34012224, while the sum is 68.

The square root of 849999992 is about 29154.7593370276. The cubic root of 849999992 is about 947.2682342141.

The spelling of 849999992 in words is "eight hundred forty-nine million, nine hundred ninety-nine thousand, nine hundred ninety-two".