850896781 has 8 divisors (see below), whose sum is σ = 977391360. Its totient is φ = 725636688.

The previous prime is 850896719. The next prime is 850896793. The reversal of 850896781 is 187698058.

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

It is not a de Polignac number, because 850896781 - 2⁹ = 850896269 is a prime.

It is a super-2 number, since 2×850896781² = 1448050663832323922, which contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (850891781) 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, 307141 + ... + 309898.

It is an arithmetic number, because the mean of its divisors is an integer number (122173920).

Almost surely, 2^850896781 is an apocalyptic number.

It is an amenable number.

850896781 is a deficient number, since it is larger than the sum of its proper divisors (126494579).

850896781 is a wasteful number, since it uses less digits than its factorization.

850896781 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 617243.

The product of its (nonzero) digits is 967680, while the sum is 52.

The square root of 850896781 is about 29170.1350871058. The cubic root of 850896781 is about 947.6012542775.

The spelling of 850896781 in words is "eight hundred fifty million, eight hundred ninety-six thousand, seven hundred eighty-one".