850867998 has 32 divisors (see below), whose sum is σ = 1767159072. Its totient is φ = 272908800.

The previous prime is 850867993. The next prime is 850868009. The reversal of 850867998 is 899768058.

It is a happy number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (850867991) 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, 5733 + ... + 41648.

It is an arithmetic number, because the mean of its divisors is an integer number (55223721).

Almost surely, 2^850867998 is an apocalyptic number.

850867998 is an abundant number, since it is smaller than the sum of its proper divisors (916291074).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

850867998 is a wasteful number, since it uses less digits than its factorization.

850867998 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 47500.

The product of its (nonzero) digits is 8709120, while the sum is 60.

The square root of 850867998 is about 29169.6417187459. The cubic root of 850867998 is about 947.5905694271.

Adding to 850867998 its sum of digits (60), we get a palindrome (850868058).

The spelling of 850867998 in words is "eight hundred fifty million, eight hundred sixty-seven thousand, nine hundred ninety-eight".