851427 has 6 divisors (see below), whose sum is σ = 1229852. Its totient is φ = 567612.

The previous prime is 851423. The next prime is 851449. The reversal of 851427 is 724158.

It is not a de Polignac number, because 851427 - 2² = 851423 is a prime.

It is a Duffinian number.

851427 is a lucky number.

It is a self number, because there is not a number n which added to its sum of digits gives 851427.

It is an inconsummate number, since it does not exist a number n which divided by its sum of digits gives 851427.

It is not an unprimeable number, because it can be changed into a prime (851423) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 47293 + ... + 47310.

2⁸⁵¹⁴²⁷ is an apocalyptic number.

851427 is a deficient number, since it is larger than the sum of its proper divisors (378425).

851427 is a wasteful number, since it uses less digits than its factorization.

851427 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 94609 (or 94606 counting only the distinct ones).

The product of its digits is 2240, while the sum is 27.

The square root of 851427 is about 922.7280205998. The cubic root of 851427 is about 94.7798039550.

The spelling of 851427 in words is "eight hundred fifty-one thousand, four hundred twenty-seven".