1423287 has 6 divisors (see below), whose sum is σ = 2055872. Its totient is φ = 948852.

The previous prime is 1423283. The next prime is 1423297. The reversal of 1423287 is 7823241.

It is not a de Polignac number, because 1423287 - 2² = 1423283 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 1423287.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1423283) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 79063 + ... + 79080.

2^1423287 is an apocalyptic number.

1423287 is a deficient number, since it is larger than the sum of its proper divisors (632585).

1423287 is a wasteful number, since it uses less digits than its factorization.

1423287 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 158149 (or 158146 counting only the distinct ones).

The product of its digits is 2688, while the sum is 27.

The square root of 1423287 is about 1193.0159261301. The cubic root of 1423287 is about 112.4857463423.

The spelling of 1423287 in words is "one million, four hundred twenty-three thousand, two hundred eighty-seven".