850986401 has 4 divisors (see below), whose sum is σ = 851925552. Its totient is φ = 850047252.

The previous prime is 850986379. The next prime is 850986403. The reversal of 850986401 is 104689058.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 850986401 - 2¹⁸ = 850724257 is a prime.

It is a Duffinian number.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (850986403) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 468215 + ... + 470028.

It is an arithmetic number, because the mean of its divisors is an integer number (212981388).

Almost surely, 2^850986401 is an apocalyptic number.

It is an amenable number.

850986401 is a deficient number, since it is larger than the sum of its proper divisors (939151).

850986401 is an equidigital number, since it uses as much as digits as its factorization.

850986401 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 939150.

The product of its (nonzero) digits is 69120, while the sum is 41.

The square root of 850986401 is about 29171.6712068404. The cubic root of 850986401 is about 947.6345215492.

The spelling of 850986401 in words is "eight hundred fifty million, nine hundred eighty-six thousand, four hundred one".