1478887 has 2 divisors, whose sum is σ = 1478888. Its totient is φ = 1478886.

The previous prime is 1478863. The next prime is 1478909. The reversal of 1478887 is 7888741.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 1478887 - 2⁷ = 1478759 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (1478837) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 739443 + 739444.

It is an arithmetic number, because the mean of its divisors is an integer number (739444).

2^1478887 is an apocalyptic number.

1478887 is a deficient number, since it is larger than the sum of its proper divisors (1).

1478887 is an equidigital number, since it uses as much as digits as its factorization.

1478887 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 100352, while the sum is 43.

The square root of 1478887 is about 1216.0949798433. The cubic root of 1478887 is about 113.9318100457.

The spelling of 1478887 in words is "one million, four hundred seventy-eight thousand, eight hundred eighty-seven".