1426679 has 4 divisors (see below), whose sum is σ = 1450920. Its totient is φ = 1402440.

The previous prime is 1426673. The next prime is 1426693. The reversal of 1426679 is 9766241.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 9766241 = 41 ⋅238201.

It is a cyclic number.

It is not a de Polignac number, because 1426679 - 2¹² = 1422583 is a prime.

It is a Duffinian number.

It is a zygodrome in base 3.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1426673) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 12032 + ... + 12149.

It is an arithmetic number, because the mean of its divisors is an integer number (362730).

2^1426679 is an apocalyptic number.

1426679 is a deficient number, since it is larger than the sum of its proper divisors (24241).

1426679 is an equidigital number, since it uses as much as digits as its factorization.

1426679 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 24240.

The product of its digits is 18144, while the sum is 35.

The square root of 1426679 is about 1194.4366873133. The cubic root of 1426679 is about 112.5750347162.

It can be divided in two parts, 142667 and 9, that multiplied together give a triangular number (1284003 = T₁₆₀₂).

The spelling of 1426679 in words is "one million, four hundred twenty-six thousand, six hundred seventy-nine".