23036437 has 2 divisors, whose sum is σ = 23036438. Its totient is φ = 23036436.

The previous prime is 23036407. The next prime is 23036473. The reversal of 23036437 is 73463032.

Together with next prime (23036473) it forms an Ormiston pair, because they use the same digits, order apart.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 22410756 + 625681 = 4734^2 + 791^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-23036437 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (23036407) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 11518218 + 11518219.

It is an arithmetic number, because the mean of its divisors is an integer number (11518219).

Almost surely, 2^23036437 is an apocalyptic number.

It is an amenable number.

23036437 is a deficient number, since it is larger than the sum of its proper divisors (1).

23036437 is an equidigital number, since it uses as much as digits as its factorization.

23036437 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 9072, while the sum is 28.

The square root of 23036437 is about 4799.6288398167. The cubic root of 23036437 is about 284.5367955349.

Adding to 23036437 its reverse (73463032), we get a palindrome (96499469).

The spelling of 23036437 in words is "twenty-three million, thirty-six thousand, four hundred thirty-seven".