1487668 has 48 divisors (see below), whose sum is σ = 3305344. Its totient is φ = 570240.

The previous prime is 1487641. The next prime is 1487711. The reversal of 1487668 is 8667841.

It is a self number, because there is not a number n which added to its sum of digits gives 1487668.

It is a congruent number.

It is an unprimeable number.

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 in 15 ways as a sum of consecutive naturals, for example, 22171 + ... + 22237.

2^1487668 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 1487668, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1652672).

1487668 is an abundant number, since it is smaller than the sum of its proper divisors (1817676).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

1487668 is a wasteful number, since it uses less digits than its factorization.

1487668 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 152 (or 150 counting only the distinct ones).

The product of its digits is 64512, while the sum is 40.

The square root of 1487668 is about 1219.6999631057. The cubic root of 1487668 is about 114.1568580440.

The spelling of 1487668 in words is "one million, four hundred eighty-seven thousand, six hundred sixty-eight".