23947983 has 6 divisors (see below), whose sum is σ = 34591544. Its totient is φ = 15965316.

The previous prime is 23947969. The next prime is 23947993. The reversal of 23947983 is 38974932.

It is a happy number.

It is not a de Polignac number, because 23947983 - 2⁶ = 23947919 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 (23947993) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 1330435 + ... + 1330452.

Almost surely, 2^23947983 is an apocalyptic number.

23947983 is a deficient number, since it is larger than the sum of its proper divisors (10643561).

23947983 is a wasteful number, since it uses less digits than its factorization.

23947983 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2660893 (or 2660890 counting only the distinct ones).

The product of its digits is 326592, while the sum is 45.

The square root of 23947983 is about 4893.6676429852. The cubic root of 23947983 is about 288.2413702805.

The spelling of 23947983 in words is "twenty-three million, nine hundred forty-seven thousand, nine hundred eighty-three".