1426791 has 4 divisors (see below), whose sum is σ = 1902392. Its totient is φ = 951192.

The previous prime is 1426781. The next prime is 1426801. The reversal of 1426791 is 1976241.

It is a happy number.

It is a semiprime because it is the product of two primes.

It is an interprime number because it is at equal distance from previous prime (1426781) and next prime (1426801).

It is not a de Polignac number, because 1426791 - 2¹¹ = 1424743 is a prime.

It is an Ulam number.

It is a D-number.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1426741) 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, 237796 + ... + 237801.

It is an arithmetic number, because the mean of its divisors is an integer number (475598).

2^1426791 is an apocalyptic number.

1426791 is a deficient number, since it is larger than the sum of its proper divisors (475601).

1426791 is an equidigital number, since it uses as much as digits as its factorization.

1426791 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 475600.

The product of its digits is 3024, while the sum is 30.

The square root of 1426791 is about 1194.4835704186. The cubic root of 1426791 is about 112.5779805024.

The spelling of 1426791 in words is "one million, four hundred twenty-six thousand, seven hundred ninety-one".