1427311 has 4 divisors (see below), whose sum is σ = 1489392. Its totient is φ = 1365232.

The previous prime is 1427297. The next prime is 1427323. The reversal of 1427311 is 1137241.

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-1427311 is a prime.

It is a Duffinian number.

1427311 is a lucky number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1427341) 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, 31006 + ... + 31051.

It is an arithmetic number, because the mean of its divisors is an integer number (372348).

2^1427311 is an apocalyptic number.

1427311 is a deficient number, since it is larger than the sum of its proper divisors (62081).

1427311 is an equidigital number, since it uses as much as digits as its factorization.

1427311 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 62080.

The product of its digits is 168, while the sum is 19.

The square root of 1427311 is about 1194.7012178783. The cubic root of 1427311 is about 112.5916553480.

The spelling of 1427311 in words is "one million, four hundred twenty-seven thousand, three hundred eleven".