23672261 has 2 divisors, whose sum is σ = 23672262. Its totient is φ = 23672260.

The previous prime is 23672249. The next prime is 23672263. The reversal of 23672261 is 16227632.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 14025025 + 9647236 = 3745^2 + 3106^2 .

It is a cyclic number.

It is not a de Polignac number, because 23672261 - 2¹⁸ = 23410117 is a prime.

Together with 23672263, it forms a pair of twin primes.

It is a Chen prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (23672263) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 11836130 + 11836131.

It is an arithmetic number, because the mean of its divisors is an integer number (11836131).

Almost surely, 2^23672261 is an apocalyptic number.

It is an amenable number.

23672261 is a deficient number, since it is larger than the sum of its proper divisors (1).

23672261 is an equidigital number, since it uses as much as digits as its factorization.

23672261 is an odious number, because the sum of its binary digits is odd.

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

The square root of 23672261 is about 4865.4147819071. The cubic root of 23672261 is about 287.1308876215.

Adding to 23672261 its reverse (16227632), we get a palindrome (39899893).

The spelling of 23672261 in words is "twenty-three million, six hundred seventy-two thousand, two hundred sixty-one".