1383966 has 20 divisors (see below), whose sum is σ = 3101472. Its totient is φ = 461268.

The previous prime is 1383961. The next prime is 1383983. The reversal of 1383966 is 6693831.

It is a happy number.

It is a super-4 number, since 4×1383966⁴ (a number of 26 digits) contains 4444 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 1383966.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1383961) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 9 ways as a sum of consecutive naturals, for example, 4110 + ... + 4433.

2^1383966 is an apocalyptic number.

1383966 is an abundant number, since it is smaller than the sum of its proper divisors (1717506).

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

1383966 is an equidigital number, since it uses as much as digits as its factorization.

1383966 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 8557 (or 8548 counting only the distinct ones).

The product of its digits is 23328, while the sum is 36.

The square root of 1383966 is about 1176.4208430659. The cubic root of 1383966 is about 111.4401805318.

The spelling of 1383966 in words is "one million, three hundred eighty-three thousand, nine hundred sixty-six".