23742737 has 2 divisors, whose sum is σ = 23742738. Its totient is φ = 23742736.

The previous prime is 23742709. The next prime is 23742773. The reversal of 23742737 is 73724732.

Together with next prime (23742773) 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., 23030401 + 712336 = 4799^2 + 844^2 .

It is a cyclic number.

It is not a de Polignac number, because 23742737 - 2¹⁸ = 23480593 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 23742697 and 23742706.

It is not a weakly prime, because it can be changed into another prime (23748737) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 11871368 + 11871369.

It is an arithmetic number, because the mean of its divisors is an integer number (11871369).

Almost surely, 2^23742737 is an apocalyptic number.

It is an amenable number.

23742737 is a deficient number, since it is larger than the sum of its proper divisors (1).

23742737 is an equidigital number, since it uses as much as digits as its factorization.

23742737 is an evil number, because the sum of its binary digits is even.

The product of its digits is 49392, while the sum is 35.

The square root of 23742737 is about 4872.6519473486. The cubic root of 23742737 is about 287.4155497392.

The spelling of 23742737 in words is "twenty-three million, seven hundred forty-two thousand, seven hundred thirty-seven".