23147393 has 2 divisors, whose sum is σ = 23147394. Its totient is φ = 23147392.

The previous prime is 23147381. The next prime is 23147413. The reversal of 23147393 is 39374132.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 18601969 + 4545424 = 4313^2 + 2132^2 .

It is a cyclic number.

It is not a de Polignac number, because 23147393 - 2¹⁰ = 23146369 is a prime.

It is not a weakly prime, because it can be changed into another prime (23147323) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 11573696 + 11573697.

It is an arithmetic number, because the mean of its divisors is an integer number (11573697).

Almost surely, 2^23147393 is an apocalyptic number.

It is an amenable number.

23147393 is a deficient number, since it is larger than the sum of its proper divisors (1).

23147393 is an equidigital number, since it uses as much as digits as its factorization.

23147393 is an evil number, because the sum of its binary digits is even.

The product of its digits is 13608, while the sum is 32.

The square root of 23147393 is about 4811.1737653093. The cubic root of 23147393 is about 284.9928919947.

The spelling of 23147393 in words is "twenty-three million, one hundred forty-seven thousand, three hundred ninety-three".