23273381 has 2 divisors, whose sum is σ = 23273382. Its totient is φ = 23273380.

The previous prime is 23273339. The next prime is 23273387. The reversal of 23273381 is 18337232.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 22137025 + 1136356 = 4705^2 + 1066^2 .

It is a cyclic number.

It is not a de Polignac number, because 23273381 - 2¹⁰ = 23272357 is a prime.

It is a super-2 number, since 2×23273381² = 1083300526342322, which contains 22 as substring.

It is a Sophie Germain prime.

It is a Curzon number.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (23273387) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 11636690 + 11636691.

It is an arithmetic number, because the mean of its divisors is an integer number (11636691).

Almost surely, 2^23273381 is an apocalyptic number.

It is an amenable number.

23273381 is a deficient number, since it is larger than the sum of its proper divisors (1).

23273381 is an equidigital number, since it uses as much as digits as its factorization.

23273381 is an evil number, because the sum of its binary digits is even.

The product of its digits is 6048, while the sum is 29.

The square root of 23273381 is about 4824.2492680209. The cubic root of 23273381 is about 285.5090154526.

The spelling of 23273381 in words is "twenty-three million, two hundred seventy-three thousand, three hundred eighty-one".