850988387 has 4 divisors (see below), whose sum is σ = 851615016. Its totient is φ = 850361760.

The previous prime is 850988371. The next prime is 850988389. The reversal of 850988387 is 783889058.

850988387 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 850988387 - 2⁴ = 850988371 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (850988389) 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, 311273 + ... + 313994.

It is an arithmetic number, because the mean of its divisors is an integer number (212903754).

Almost surely, 2^850988387 is an apocalyptic number.

850988387 is a deficient number, since it is larger than the sum of its proper divisors (626629).

850988387 is a wasteful number, since it uses less digits than its factorization.

850988387 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 626628.

The product of its (nonzero) digits is 3870720, while the sum is 56.

The square root of 850988387 is about 29171.7052466941. The cubic root of 850988387 is about 947.6352587332.

The spelling of 850988387 in words is "eight hundred fifty million, nine hundred eighty-eight thousand, three hundred eighty-seven".