23381377 has 2 divisors, whose sum is σ = 23381378. Its totient is φ = 23381376.

The previous prime is 23381359. The next prime is 23381383. The reversal of 23381377 is 77318332.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 23049601 + 331776 = 4801^2 + 576^2 .

It is a cyclic number.

It is not a de Polignac number, because 23381377 - 2⁷ = 23381249 is a prime.

It is a super-2 number, since 2×23381377² = 1093377580832258, which contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (23381387) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 11690688 + 11690689.

It is an arithmetic number, because the mean of its divisors is an integer number (11690689).

Almost surely, 2^23381377 is an apocalyptic number.

It is an amenable number.

23381377 is a deficient number, since it is larger than the sum of its proper divisors (1).

23381377 is an equidigital number, since it uses as much as digits as its factorization.

23381377 is an evil number, because the sum of its binary digits is even.

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

The square root of 23381377 is about 4835.4293501198. The cubic root of 23381377 is about 285.9499521208.

The spelling of 23381377 in words is "twenty-three million, three hundred eighty-one thousand, three hundred seventy-seven".