427091 has 16 divisors (see below), whose sum is σ = 536256. Its totient is φ = 331776.

The previous prime is 427081. The next prime is 427103. The reversal of 427091 is 190724.

427091 = 244² + 245² + ... + 250².

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-427091 is a prime.

It is not an unprimeable number, because it can be changed into a prime (427001) 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, 4355 + ... + 4451.

It is an arithmetic number, because the mean of its divisors is an integer number (33516).

2⁴²⁷⁰⁹¹ is an apocalyptic number.

427091 is a deficient number, since it is larger than the sum of its proper divisors (109165).

427091 is a wasteful number, since it uses less digits than its factorization.

427091 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 158.

The product of its (nonzero) digits is 504, while the sum is 23.

The square root of 427091 is about 653.5219965694. The cubic root of 427091 is about 75.3078311012.

The spelling of 427091 in words is "four hundred twenty-seven thousand, ninety-one".