850201091 has 8 divisors (see below), whose sum is σ = 884081280. Its totient is φ = 816625152.

The previous prime is 850201087. The next prime is 850201097. The reversal of 850201091 is 190102058.

It is a happy number.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 850201091 - 2² = 850201087 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 850201091.

It is not an unprimeable number, because it can be changed into a prime (850201097) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 70355 + ... + 81548.

It is an arithmetic number, because the mean of its divisors is an integer number (110510160).

Almost surely, 2^850201091 is an apocalyptic number.

850201091 is a deficient number, since it is larger than the sum of its proper divisors (33880189).

850201091 is a wasteful number, since it uses less digits than its factorization.

850201091 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 152125.

The product of its (nonzero) digits is 720, while the sum is 26.

The square root of 850201091 is about 29158.2079524788. The cubic root of 850201091 is about 947.3429321261.

The spelling of 850201091 in words is "eight hundred fifty million, two hundred one thousand, ninety-one".