826427 has 4 divisors (see below), whose sum is σ = 944496. Its totient is φ = 708360.

The previous prime is 826411. The next prime is 826453. The reversal of 826427 is 724628.

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 826427 - 2⁴ = 826411 is a prime.

It is a d-powerful number, because it can be written as 8³ + 2⁵ + 4⁴ + 6² + 2¹¹ + 7⁷ .

It is a self number, because there is not a number n which added to its sum of digits gives 826427.

It is not an unprimeable number, because it can be changed into a prime (826477) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 59024 + ... + 59037.

It is an arithmetic number, because the mean of its divisors is an integer number (236124).

2⁸²⁶⁴²⁷ is an apocalyptic number.

826427 is a deficient number, since it is larger than the sum of its proper divisors (118069).

826427 is a wasteful number, since it uses less digits than its factorization.

826427 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 118068.

The product of its digits is 5376, while the sum is 29.

The square root of 826427 is about 909.0803044836. The cubic root of 826427 is about 93.8429170632.

The spelling of 826427 in words is "eight hundred twenty-six thousand, four hundred twenty-seven".