1422687 has 16 divisors (see below), whose sum is σ = 2227712. Its totient is φ = 790560.

The previous prime is 1422677. The next prime is 1422691. The reversal of 1422687 is 7862241.

It is not a de Polignac number, because 1422687 - 2⁴ = 1422671 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 (1422637) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 139 + ... + 1692.

It is an arithmetic number, because the mean of its divisors is an integer number (139232).

2^1422687 is an apocalyptic number.

1422687 is a deficient number, since it is larger than the sum of its proper divisors (805025).

1422687 is a wasteful number, since it uses less digits than its factorization.

1422687 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1878.

The product of its digits is 5376, while the sum is 30.

The square root of 1422687 is about 1192.7644360895. The cubic root of 1422687 is about 112.4699376464.

The spelling of 1422687 in words is "one million, four hundred twenty-two thousand, six hundred eighty-seven".