23773381 has 4 divisors (see below), whose sum is σ = 23783200. Its totient is φ = 23763564.

The previous prime is 23773333. The next prime is 23773403. The reversal of 23773381 is 18337732.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4, and also a brilliant number, because the two primes have the same length.

It is a cyclic number.

It is not a de Polignac number, because 23773381 - 2¹⁷ = 23642309 is a prime.

It is a super-2 number, since 2×23773381² = 1130347288342322, which contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (23773331) 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, 1600 + ... + 7078.

It is an arithmetic number, because the mean of its divisors is an integer number (5945800).

Almost surely, 2^23773381 is an apocalyptic number.

It is an amenable number.

23773381 is a deficient number, since it is larger than the sum of its proper divisors (9819).

23773381 is an equidigital number, since it uses as much as digits as its factorization.

23773381 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 9818.

The product of its digits is 21168, while the sum is 34.

The square root of 23773381 is about 4875.7954222875. The cubic root of 23773381 is about 287.5391493001.

The spelling of 23773381 in words is "twenty-three million, seven hundred seventy-three thousand, three hundred eighty-one".