850194747 has 24 divisors (see below), whose sum is σ = 1322800128. Its totient is φ = 524660400.

The previous prime is 850194743. The next prime is 850194757. The reversal of 850194747 is 747491058.

It is a happy number.

It is not a de Polignac number, because 850194747 - 2² = 850194743 is a prime.

It is a super-2 number, since 2×850194747² = 1445662215652788018, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (850194743) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 59829 + ... + 72662.

It is an arithmetic number, because the mean of its divisors is an integer number (55116672).

Almost surely, 2^850194747 is an apocalyptic number.

850194747 is a deficient number, since it is larger than the sum of its proper divisors (472605381).

850194747 is a wasteful number, since it uses less digits than its factorization.

850194747 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 132551 (or 132548 counting only the distinct ones).

The product of its (nonzero) digits is 282240, while the sum is 45.

The square root of 850194747 is about 29158.0991664409. The cubic root of 850194747 is about 947.3405758370.

The spelling of 850194747 in words is "eight hundred fifty million, one hundred ninety-four thousand, seven hundred forty-seven".