1459987 has 4 divisors (see below), whose sum is σ = 1463616. Its totient is φ = 1456360.

The previous prime is 1459963. The next prime is 1459993. The reversal of 1459987 is 7899541.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 1459987 - 2¹⁹ = 935699 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (1459907) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1123 + ... + 2044.

It is an arithmetic number, because the mean of its divisors is an integer number (365904).

2^1459987 is an apocalyptic number.

1459987 is a deficient number, since it is larger than the sum of its proper divisors (3629).

1459987 is an equidigital number, since it uses as much as digits as its factorization.

1459987 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3628.

The product of its digits is 90720, while the sum is 43.

The square root of 1459987 is about 1208.2992179092. The cubic root of 1459987 is about 113.4443826948. Note that the first 3 decimals are identical.

The spelling of 1459987 in words is "one million, four hundred fifty-nine thousand, nine hundred eighty-seven".