23749387 has 2 divisors, whose sum is σ = 23749388. Its totient is φ = 23749386.

The previous prime is 23749351. The next prime is 23749417. The reversal of 23749387 is 78394732.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 23749387 - 2¹⁵ = 23716619 is a prime.

It is not a weakly prime, because it can be changed into another prime (23749307) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 11874693 + 11874694.

It is an arithmetic number, because the mean of its divisors is an integer number (11874694).

Almost surely, 2^23749387 is an apocalyptic number.

23749387 is a deficient number, since it is larger than the sum of its proper divisors (1).

23749387 is an equidigital number, since it uses as much as digits as its factorization.

23749387 is an evil number, because the sum of its binary digits is even.

The product of its digits is 254016, while the sum is 43.

The square root of 23749387 is about 4873.3342795257. The cubic root of 23749387 is about 287.4423808916.

The spelling of 23749387 in words is "twenty-three million, seven hundred forty-nine thousand, three hundred eighty-seven".