1442887 has 2 divisors, whose sum is σ = 1442888. Its totient is φ = 1442886.

The previous prime is 1442873. The next prime is 1442899. The reversal of 1442887 is 7882441.

It is a strong prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-1442887 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (1442827) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 721443 + 721444.

It is an arithmetic number, because the mean of its divisors is an integer number (721444).

2^1442887 is an apocalyptic number.

1442887 is a deficient number, since it is larger than the sum of its proper divisors (1).

1442887 is an equidigital number, since it uses as much as digits as its factorization.

1442887 is an evil number, because the sum of its binary digits is even.

The product of its digits is 14336, while the sum is 34.

The square root of 1442887 is about 1201.2023143501. The cubic root of 1442887 is about 112.9997389505. Note that the first 3 decimals are identical.

The spelling of 1442887 in words is "one million, four hundred forty-two thousand, eight hundred eighty-seven".