827479 has 4 divisors (see below), whose sum is σ = 830200. Its totient is φ = 824760.

The previous prime is 827473. The next prime is 827501. The reversal of 827479 is 974728.

It is a happy number.

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 827479 - 2⁵ = 827447 is a prime.

It is a d-powerful number, because it can be written as 8³ + 2¹¹ + 4⁵ + 7³ + 7⁷ + 9 .

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (827473) 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, 837 + ... + 1534.

It is an arithmetic number, because the mean of its divisors is an integer number (207550).

827479 is a Friedman number, since it can be written as 492*8+7^7, using all its digits and the basic arithmetic operations.

2⁸²⁷⁴⁷⁹ is an apocalyptic number.

827479 is a deficient number, since it is larger than the sum of its proper divisors (2721).

827479 is a wasteful number, since it uses less digits than its factorization.

827479 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2720.

The product of its digits is 28224, while the sum is 37.

The square root of 827479 is about 909.6587272159. The cubic root of 827479 is about 93.8827192836.

It can be divided in two parts, 82 and 7479, that multiplied together give a triangular number (613278 = T₁₁₀₇).

The spelling of 827479 in words is "eight hundred twenty-seven thousand, four hundred seventy-nine".