1427859 has 12 divisors (see below), whose sum is σ = 2098200. Its totient is φ = 935424.

The previous prime is 1427851. The next prime is 1427879. The reversal of 1427859 is 9587241.

It is not a de Polignac number, because 1427859 - 2³ = 1427851 is a prime.

It is not an unprimeable number, because it can be changed into a prime (1427851) by changing a digit.

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 11 ways as a sum of consecutive naturals, for example, 814 + ... + 1875.

It is an arithmetic number, because the mean of its divisors is an integer number (174850).

2^1427859 is an apocalyptic number.

1427859 is a deficient number, since it is larger than the sum of its proper divisors (670341).

1427859 is a wasteful number, since it uses less digits than its factorization.

1427859 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2754 (or 2751 counting only the distinct ones).

The product of its digits is 20160, while the sum is 36.

The square root of 1427859 is about 1194.9305419145. The cubic root of 1427859 is about 112.6060629373.

It can be divided in two parts, 142 and 7859, that added together give a triangular number (8001 = T₁₂₆).

The spelling of 1427859 in words is "one million, four hundred twenty-seven thousand, eight hundred fifty-nine".