1487647 has 6 divisors (see below), whose sum is σ = 1703864. Its totient is φ = 1272360.

The previous prime is 1487641. The next prime is 1487711. The reversal of 1487647 is 7467841.

It is not a de Polignac number, because 1487647 - 2¹¹ = 1485599 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1487641) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 2997 + ... + 3457.

2^1487647 is an apocalyptic number.

1487647 is a deficient number, since it is larger than the sum of its proper divisors (216217).

1487647 is an frugal number, since it uses more digits than its factorization.

1487647 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 929 (or 468 counting only the distinct ones).

The product of its digits is 37632, while the sum is 37.

The square root of 1487647 is about 1219.6913544008. The cubic root of 1487647 is about 114.1563208934.

The spelling of 1487647 in words is "one million, four hundred eighty-seven thousand, six hundred forty-seven".