850066436 has 12 divisors (see below), whose sum is σ = 1575123228. Its totient is φ = 400031232.

The previous prime is 850066433. The next prime is 850066439. The reversal of 850066436 is 634660058.

It is an interprime number because it is at equal distance from previous prime (850066433) and next prime (850066439).

It can be written as a sum of positive squares in 2 ways, for example, as 489294400 + 360772036 = 22120^2 + 18994^2 .

It is a super-2 number, since 2×850066436² = 1445225891227484192, which contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 850066436.

It is not an unprimeable number, because it can be changed into a prime (850066433) 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, 6250421 + ... + 6250556.

It is an arithmetic number, because the mean of its divisors is an integer number (131260269).

Almost surely, 2^850066436 is an apocalyptic number.

It is an amenable number.

850066436 is a deficient number, since it is larger than the sum of its proper divisors (725056792).

850066436 is a wasteful number, since it uses less digits than its factorization.

850066436 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 12500998 (or 12500996 counting only the distinct ones).

The product of its (nonzero) digits is 103680, while the sum is 38.

The square root of 850066436 is about 29155.8988199644. The cubic root of 850066436 is about 947.2929160381.

The spelling of 850066436 in words is "eight hundred fifty million, sixty-six thousand, four hundred thirty-six".