850601421 has 12 divisors (see below), whose sum is σ = 1234823200. Its totient is φ = 564216840.

The previous prime is 850601359. The next prime is 850601459. The reversal of 850601421 is 124106058.

850601421 is a `hidden beast` number, since 8 + 50 + 601 + 4 + 2 + 1 = 666.

It is not a de Polignac number, because 850601421 - 2¹⁰ = 850600397 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (850601491) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 235675 + ... + 239256.

Almost surely, 2^850601421 is an apocalyptic number.

It is an amenable number.

850601421 is a deficient number, since it is larger than the sum of its proper divisors (384221779).

850601421 is a wasteful number, since it uses less digits than its factorization.

850601421 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 475136 (or 475133 counting only the distinct ones).

The product of its (nonzero) digits is 1920, while the sum is 27.

The square root of 850601421 is about 29165.0719354505. The cubic root of 850601421 is about 947.4915990279.

Adding to 850601421 its reverse (124106058), we get a palindrome (974707479).

The spelling of 850601421 in words is "eight hundred fifty million, six hundred one thousand, four hundred twenty-one".