1648487 has 8 divisors (see below), whose sum is σ = 1744512. Its totient is φ = 1555200.

The previous prime is 1648483. The next prime is 1648499. The reversal of 1648487 is 7848461.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 1648487 - 2² = 1648483 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 1648487.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1648481) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 623 + ... + 1919.

It is an arithmetic number, because the mean of its divisors is an integer number (218064).

2^1648487 is an apocalyptic number.

1648487 is a deficient number, since it is larger than the sum of its proper divisors (96025).

1648487 is a wasteful number, since it uses less digits than its factorization.

1648487 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1369.

The product of its digits is 43008, while the sum is 38.

The square root of 1648487 is about 1283.9341883446. The cubic root of 1648487 is about 118.1304456118.

The spelling of 1648487 in words is "one million, six hundred forty-eight thousand, four hundred eighty-seven".