811427 has 8 divisors (see below), whose sum is σ = 874800. Its totient is φ = 749824.

The previous prime is 811411. The next prime is 811429. The reversal of 811427 is 724118.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 811427 - 2⁴ = 811411 is a prime.

It is a Duffinian number.

It is an inconsummate number, since it does not exist a number n which divided by its sum of digits gives 811427.

It is not an unprimeable number, because it can be changed into a prime (811429) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 599 + ... + 1407.

It is an arithmetic number, because the mean of its divisors is an integer number (109350).

2⁸¹¹⁴²⁷ is an apocalyptic number.

811427 is a deficient number, since it is larger than the sum of its proper divisors (63373).

811427 is a wasteful number, since it uses less digits than its factorization.

811427 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 885.

The product of its digits is 448, while the sum is 23.

The square root of 811427 is about 900.7924289202. The cubic root of 811427 is about 93.2716840611.

The spelling of 811427 in words is "eight hundred eleven thousand, four hundred twenty-seven".