426291 has 4 divisors (see below), whose sum is σ = 568392. Its totient is φ = 284192.

The previous prime is 426287. The next prime is 426301. The reversal of 426291 is 192624.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 426291 - 2² = 426287 is a prime.

It is a D-number.

It is not an unprimeable number, because it can be changed into a prime (426211) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 71046 + ... + 71051.

It is an arithmetic number, because the mean of its divisors is an integer number (142098).

2⁴²⁶²⁹¹ is an apocalyptic number.

426291 is a deficient number, since it is larger than the sum of its proper divisors (142101).

426291 is a wasteful number, since it uses less digits than its factorization.

426291 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 142100.

The product of its digits is 864, while the sum is 24.

The square root of 426291 is about 652.9096415278. The cubic root of 426291 is about 75.2607810810.

It can be divided in two parts, 426 and 291, that added together give a palindrome (717).

The spelling of 426291 in words is "four hundred twenty-six thousand, two hundred ninety-one".