827240 has 16 divisors (see below), whose sum is σ = 1861380. Its totient is φ = 330880.

The previous prime is 827231. The next prime is 827251. The reversal of 827240 is 42728.

It can be written as a sum of positive squares in 2 ways, for example, as 749956 + 77284 = 866^2 + 278^2 .

It is a congruent number.

It is an unprimeable number.

827240 is an untouchable number, because it is not equal to the sum of proper divisors of any number.

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, 10301 + ... + 10380.

2⁸²⁷²⁴⁰ is an apocalyptic number.

It is an amenable number.

827240 is an abundant number, since it is smaller than the sum of its proper divisors (1034140).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

827240 is a wasteful number, since it uses less digits than its factorization.

827240 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 20692 (or 20688 counting only the distinct ones).

The product of its (nonzero) digits is 896, while the sum is 23.

The square root of 827240 is about 909.5273497812. The cubic root of 827240 is about 93.8736797267.

Adding to 827240 its reverse (42728), we get a palindrome (869968).

The spelling of 827240 in words is "eight hundred twenty-seven thousand, two hundred forty".