23778983 has 2 divisors, whose sum is σ = 23778984. Its totient is φ = 23778982.

The previous prime is 23778977. The next prime is 23778991. The reversal of 23778983 is 38987732.

It is a happy number.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 23778983 - 2¹⁰ = 23777959 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (23778943) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 11889491 + 11889492.

It is an arithmetic number, because the mean of its divisors is an integer number (11889492).

Almost surely, 2^23778983 is an apocalyptic number.

23778983 is a deficient number, since it is larger than the sum of its proper divisors (1).

23778983 is an equidigital number, since it uses as much as digits as its factorization.

23778983 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 508032, while the sum is 47.

The square root of 23778983 is about 4876.3698588192. The cubic root of 23778983 is about 287.5617329313.

The spelling of 23778983 in words is "twenty-three million, seven hundred seventy-eight thousand, nine hundred eighty-three".