850583969 has 2 divisors, whose sum is σ = 850583970. Its totient is φ = 850583968.

The previous prime is 850583959. The next prime is 850583977. The reversal of 850583969 is 969385058.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 772172944 + 78411025 = 27788^2 + 8855^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-850583969 is a prime.

It is a super-2 number, since 2×850583969² = 1446986176639585922, which contains 22 as substring.

It is a Chen prime.

It is a self number, because there is not a number n which added to its sum of digits gives 850583969.

It is not a weakly prime, because it can be changed into another prime (850583959) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 425291984 + 425291985.

It is an arithmetic number, because the mean of its divisors is an integer number (425291985).

Almost surely, 2^850583969 is an apocalyptic number.

It is an amenable number.

850583969 is a deficient number, since it is larger than the sum of its proper divisors (1).

850583969 is an equidigital number, since it uses as much as digits as its factorization.

850583969 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 2332800, while the sum is 53.

The square root of 850583969 is about 29164.7727404141. The cubic root of 850583969 is about 947.4851190103.

The spelling of 850583969 in words is "eight hundred fifty million, five hundred eighty-three thousand, nine hundred sixty-nine".