427791 has 16 divisors (see below), whose sum is σ = 702464. Its totient is φ = 225504.

The previous prime is 427789. The next prime is 427813. The reversal of 427791 is 197724.

It is not a de Polignac number, because 427791 - 2¹ = 427789 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (427711) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 511 + ... + 1056.

It is an arithmetic number, because the mean of its divisors is an integer number (43904).

2⁴²⁷⁷⁹¹ is an apocalyptic number.

427791 is a deficient number, since it is larger than the sum of its proper divisors (274673).

427791 is a wasteful number, since it uses less digits than its factorization.

427791 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1590.

The product of its digits is 3528, while the sum is 30.

The square root of 427791 is about 654.0573369361. The cubic root of 427791 is about 75.3489516960.

The spelling of 427791 in words is "four hundred twenty-seven thousand, seven hundred ninety-one".