1487664 has 30 divisors (see below), whose sum is σ = 4163796. Its totient is φ = 495840.

The previous prime is 1487641. The next prime is 1487711. The reversal of 1487664 is 4667841.

It is a super-3 number, since 3×1487664³ = 9877244756333432832, which contains 333 as substring.

It is a Harshad number since it is a multiple of its sum of digits (36).

It is an unprimeable number.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 5022 + ... + 5309.

2^1487664 is an apocalyptic number.

It is an amenable number.

1487664 is an abundant number, since it is smaller than the sum of its proper divisors (2676132).

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

1487664 is a wasteful number, since it uses less digits than its factorization.

1487664 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 10345 (or 10336 counting only the distinct ones).

The product of its digits is 32256, while the sum is 36.

The square root of 1487664 is about 1219.6983233571. The cubic root of 1487664 is about 114.1567557300.

It can be divided in two parts, 14 and 87664, that added together give a palindrome (87678).

The spelling of 1487664 in words is "one million, four hundred eighty-seven thousand, six hundred sixty-four".