1383687 has 6 divisors (see below), whose sum is σ = 1998672. Its totient is φ = 922452.

The previous prime is 1383667. The next prime is 1383691. The reversal of 1383687 is 7863831.

It is not a de Polignac number, because 1383687 - 2¹⁰ = 1382663 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1383607) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 76863 + ... + 76880.

It is an arithmetic number, because the mean of its divisors is an integer number (333112).

2^1383687 is an apocalyptic number.

1383687 is a deficient number, since it is larger than the sum of its proper divisors (614985).

1383687 is a wasteful number, since it uses less digits than its factorization.

1383687 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 153749 (or 153746 counting only the distinct ones).

The product of its digits is 24192, while the sum is 36.

The square root of 1383687 is about 1176.3022570751. The cubic root of 1383687 is about 111.4326914509.

The spelling of 1383687 in words is "one million, three hundred eighty-three thousand, six hundred eighty-seven".