12379783 has 4 divisors (see below), whose sum is σ = 13332088. Its totient is φ = 11427480.

The previous prime is 12379777. The next prime is 12379789. The reversal of 12379783 is 38797321.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 38797321 = 251 ⋅154571.

It is an interprime number because it is at equal distance from previous prime (12379777) and next prime (12379789).

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-12379783 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 (12379789) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 476133 + ... + 476158.

It is an arithmetic number, because the mean of its divisors is an integer number (3333022).

Almost surely, 2^12379783 is an apocalyptic number.

12379783 is a gapful number since it is divisible by the number (13) formed by its first and last digit.

12379783 is a deficient number, since it is larger than the sum of its proper divisors (952305).

12379783 is an equidigital number, since it uses as much as digits as its factorization.

12379783 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 952304.

The product of its digits is 63504, while the sum is 40.

The square root of 12379783 is about 3518.4915802088. The cubic root of 12379783 is about 231.3330465789. Note that the first 3 decimals are identical.

The spelling of 12379783 in words is "twelve million, three hundred seventy-nine thousand, seven hundred eighty-three".