2391983 has 8 divisors (see below), whose sum is σ = 2636496. Its totient is φ = 2152000.

The previous prime is 2391979. The next prime is 2391997. The reversal of 2391983 is 3891932.

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 2391983 - 2² = 2391979 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 (2391953) 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, 35 + ... + 2187.

It is an arithmetic number, because the mean of its divisors is an integer number (329562).

2^2391983 is an apocalyptic number.

2391983 is a deficient number, since it is larger than the sum of its proper divisors (244513).

2391983 is a wasteful number, since it uses less digits than its factorization.

2391983 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2265.

The product of its digits is 11664, while the sum is 35.

The square root of 2391983 is about 1546.6036984309. The cubic root of 2391983 is about 133.7373447135.

It can be divided in two parts, 239 and 1983, that added together give a palindrome (2222).

The spelling of 2391983 in words is "two million, three hundred ninety-one thousand, nine hundred eighty-three".