23732213 has 2 divisors, whose sum is σ = 23732214. Its totient is φ = 23732212.

The previous prime is 23732209. The next prime is 23732239. The reversal of 23732213 is 31223732.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 22344529 + 1387684 = 4727^2 + 1178^2 .

It is a cyclic number.

It is not a de Polignac number, because 23732213 - 2² = 23732209 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (23732713) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 11866106 + 11866107.

It is an arithmetic number, because the mean of its divisors is an integer number (11866107).

Almost surely, 2^23732213 is an apocalyptic number.

It is an amenable number.

23732213 is a deficient number, since it is larger than the sum of its proper divisors (1).

23732213 is an equidigital number, since it uses as much as digits as its factorization.

23732213 is an evil number, because the sum of its binary digits is even.

The product of its digits is 1512, while the sum is 23.

The square root of 23732213 is about 4871.5719229013. The cubic root of 23732213 is about 287.3730776874.

Adding to 23732213 its reverse (31223732), we get a palindrome (54955945).

The spelling of 23732213 in words is "twenty-three million, seven hundred thirty-two thousand, two hundred thirteen".