850888261 has 4 divisors (see below), whose sum is σ = 853660192. Its totient is φ = 848116332.

The previous prime is 850888249. The next prime is 850888303. The reversal of 850888261 is 162888058.

850888261 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, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 850888261 - 2⁷ = 850888133 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 (850888561) 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, 1385505 + ... + 1386118.

It is an arithmetic number, because the mean of its divisors is an integer number (213415048).

Almost surely, 2^850888261 is an apocalyptic number.

It is an amenable number.

850888261 is a deficient number, since it is larger than the sum of its proper divisors (2771931).

850888261 is a wasteful number, since it uses less digits than its factorization.

850888261 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2771930.

The product of its (nonzero) digits is 245760, while the sum is 46.

The square root of 850888261 is about 29169.9890469640. The cubic root of 850888261 is about 947.5980915008.

It can be divided in two parts, 8508 and 88261, that added together give a palindrome (96769).

The spelling of 850888261 in words is "eight hundred fifty million, eight hundred eighty-eight thousand, two hundred sixty-one".