850838401 has 24 divisors (see below), whose sum is σ = 1004724864. Its totient is φ = 718341120.

The previous prime is 850838399. The next prime is 850838419. The reversal of 850838401 is 104838058.

It is not a de Polignac number, because 850838401 - 2¹ = 850838399 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (850838441) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 1327041 + ... + 1327681.

It is an arithmetic number, because the mean of its divisors is an integer number (41863536).

Almost surely, 2^850838401 is an apocalyptic number.

It is an amenable number.

850838401 is a deficient number, since it is larger than the sum of its proper divisors (153886463).

850838401 is a wasteful number, since it uses less digits than its factorization.

850838401 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1021 (or 1014 counting only the distinct ones).

The product of its (nonzero) digits is 30720, while the sum is 37.

The square root of 850838401 is about 29169.1343889393. The cubic root of 850838401 is about 947.5795821516.

The spelling of 850838401 in words is "eight hundred fifty million, eight hundred thirty-eight thousand, four hundred one".