850428669 has 8 divisors (see below), whose sum is σ = 1158030720. Its totient is φ = 554889536.

The previous prime is 850428661. The next prime is 850428671. The reversal of 850428669 is 966824058.

It is a happy number.

850428669 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

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

It is a cyclic number.

It is not a de Polignac number, because 850428669 - 2³ = 850428661 is a prime.

It is a super-2 number, since 2×850428669² = 1446457842114223122, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (850428661) 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, 3015564 + ... + 3015845.

It is an arithmetic number, because the mean of its divisors is an integer number (144753840).

Almost surely, 2^850428669 is an apocalyptic number.

It is an amenable number.

850428669 is a deficient number, since it is larger than the sum of its proper divisors (307602051).

850428669 is a wasteful number, since it uses less digits than its factorization.

850428669 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6031459.

The product of its (nonzero) digits is 829440, while the sum is 48.

The square root of 850428669 is about 29162.1101602748. The cubic root of 850428669 is about 947.4274514155.

It can be divided in two parts, 8504 and 28669, that added together give a palindrome (37173).

The spelling of 850428669 in words is "eight hundred fifty million, four hundred twenty-eight thousand, six hundred sixty-nine".