1487859 has 4 divisors (see below), whose sum is σ = 1983816. Its totient is φ = 991904.

The previous prime is 1487821. The next prime is 1487867. The reversal of 1487859 is 9587841.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 9587841 = 3 ⋅3195947.

It is a cyclic number.

It is not a de Polignac number, because 1487859 - 2¹² = 1483763 is a prime.

It is a super-3 number, since 3×1487859³ = 9881129333501942337, which contains 333 as substring.

It is a D-number.

It is a self number, because there is not a number n which added to its sum of digits gives 1487859.

It is not an unprimeable number, because it can be changed into a prime (1487809) 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, 247974 + ... + 247979.

It is an arithmetic number, because the mean of its divisors is an integer number (495954).

2^1487859 is an apocalyptic number.

1487859 is a deficient number, since it is larger than the sum of its proper divisors (495957).

1487859 is an equidigital number, since it uses as much as digits as its factorization.

1487859 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 495956.

The product of its digits is 80640, while the sum is 42.

The square root of 1487859 is about 1219.7782585372. The cubic root of 1487859 is about 114.1617433246.

It can be divided in two parts, 1487 and 859, that added together give a triangular number (2346 = T₆₈).

The spelling of 1487859 in words is "one million, four hundred eighty-seven thousand, eight hundred fifty-nine".