1379983 has 4 divisors (see below), whose sum is σ = 1505448. Its totient is φ = 1254520.

The previous prime is 1379981. The next prime is 1379993. The reversal of 1379983 is 3899731.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 1379983 - 2¹ = 1379981 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1379981) 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 3 ways as a sum of consecutive naturals, for example, 62716 + ... + 62737.

It is an arithmetic number, because the mean of its divisors is an integer number (376362).

2^1379983 is an apocalyptic number.

1379983 is a deficient number, since it is larger than the sum of its proper divisors (125465).

1379983 is a wasteful number, since it uses less digits than its factorization.

1379983 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 125464.

The product of its digits is 40824, while the sum is 40.

The square root of 1379983 is about 1174.7267767443. The cubic root of 1379983 is about 111.3331709831. Note that the first 3 decimals are identical.

The spelling of 1379983 in words is "one million, three hundred seventy-nine thousand, nine hundred eighty-three".