1422844687 has 18 divisors (see below), whose sum is σ = 1577024624. Its totient is φ = 1282764120.

The previous prime is 1422844669. The next prime is 1422844693. The reversal of 1422844687 is 7864482241.

It is not a de Polignac number, because 1422844687 - 2¹⁵ = 1422811919 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1422844187) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 17 ways as a sum of consecutive naturals, for example, 3876778 + ... + 3877144.

Almost surely, 2^1422844687 is an apocalyptic number.

1422844687 is a deficient number, since it is larger than the sum of its proper divisors (154179937).

1422844687 is an equidigital number, since it uses as much as digits as its factorization.

1422844687 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 747 (or 557 counting only the distinct ones).

The product of its digits is 688128, while the sum is 46.

The square root of 1422844687 is about 37720.6135554553. The cubic root of 1422844687 is about 1124.7409278664.

The spelling of 1422844687 in words is "one billion, four hundred twenty-two million, eight hundred forty-four thousand, six hundred eighty-seven".