1383866 has 8 divisors (see below), whose sum is σ = 2264544. Its totient is φ = 629020.

The previous prime is 1383857. The next prime is 1383881. The reversal of 1383866 is 6683831.

It is a happy number.

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

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 31430 + ... + 31473.

It is an arithmetic number, because the mean of its divisors is an integer number (283068).

2^1383866 is an apocalyptic number.

1383866 is a deficient number, since it is larger than the sum of its proper divisors (880678).

1383866 is a wasteful number, since it uses less digits than its factorization.

1383866 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 62916.

The product of its digits is 20736, while the sum is 35.

The square root of 1383866 is about 1176.3783405010. The cubic root of 1383866 is about 111.4374963892.

Subtracting from 1383866 its sum of digits (35), we obtain a palindrome (1383831).

It can be divided in two parts, 138 and 3866, that added together give a palindrome (4004).

The spelling of 1383866 in words is "one million, three hundred eighty-three thousand, eight hundred sixty-six".