827947 has 4 divisors (see below), whose sum is σ = 842040. Its totient is φ = 813856.

The previous prime is 827941. The next prime is 827969. The reversal of 827947 is 749728.

It is a happy number.

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

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-827947 is a prime.

It is an Ulam number.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (827941) 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, 6958 + ... + 7075.

It is an arithmetic number, because the mean of its divisors is an integer number (210510).

2⁸²⁷⁹⁴⁷ is an apocalyptic number.

827947 is a deficient number, since it is larger than the sum of its proper divisors (14093).

827947 is a wasteful number, since it uses less digits than its factorization.

827947 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 14092.

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

The square root of 827947 is about 909.9159301826. The cubic root of 827947 is about 93.9004151333.

The spelling of 827947 in words is "eight hundred twenty-seven thousand, nine hundred forty-seven".