1385983 has 8 divisors (see below), whose sum is σ = 1455552. Its totient is φ = 1318176.

The previous prime is 1385977. The next prime is 1385987. The reversal of 1385983 is 3895831.

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 1385983 - 2⁹ = 1385471 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (37).

It is an Ulam number.

It is a Duffinian number.

1385983 is a lucky number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1385987) 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, 1341 + ... + 2137.

It is an arithmetic number, because the mean of its divisors is an integer number (181944).

2^1385983 is an apocalyptic number.

1385983 is a deficient number, since it is larger than the sum of its proper divisors (69569).

1385983 is an equidigital number, since it uses as much as digits as its factorization.

1385983 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 881.

The product of its digits is 25920, while the sum is 37.

The square root of 1385983 is about 1177.2777921969. The cubic root of 1385983 is about 111.4942921059.

It can be divided in two parts, 138598 and 3, that added together give a triangular number (138601 = T₅₂₆).

The spelling of 1385983 in words is "one million, three hundred eighty-five thousand, nine hundred eighty-three".