814091 has 4 divisors (see below), whose sum is σ = 840384. Its totient is φ = 787800.

The previous prime is 814081. The next prime is 814097. The reversal of 814091 is 190418.

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-814091 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (814097) 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, 13100 + ... + 13161.

It is an arithmetic number, because the mean of its divisors is an integer number (210096).

2⁸¹⁴⁰⁹¹ is an apocalyptic number.

814091 is a deficient number, since it is larger than the sum of its proper divisors (26293).

814091 is a wasteful number, since it uses less digits than its factorization.

814091 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 26292.

The product of its (nonzero) digits is 288, while the sum is 23.

The square root of 814091 is about 902.2699152693. The cubic root of 814091 is about 93.3736461342.

The spelling of 814091 in words is "eight hundred fourteen thousand, ninety-one".