850235997 has 16 divisors (see below), whose sum is σ = 1285108160. Its totient is φ = 495683712.

The previous prime is 850235993. The next prime is 850236019. The reversal of 850235997 is 799532058.

It is a happy number.

It is not a de Polignac number, because 850235997 - 2² = 850235993 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (850235993) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 572968 + ... + 574449.

It is an arithmetic number, because the mean of its divisors is an integer number (80319260).

Almost surely, 2^850235997 is an apocalyptic number.

It is an amenable number.

850235997 is a deficient number, since it is larger than the sum of its proper divisors (434872163).

850235997 is a wasteful number, since it uses less digits than its factorization.

850235997 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1147452.

The product of its (nonzero) digits is 680400, while the sum is 48.

The square root of 850235997 is about 29158.8065084976. The cubic root of 850235997 is about 947.3558967059.

The spelling of 850235997 in words is "eight hundred fifty million, two hundred thirty-five thousand, nine hundred ninety-seven".