23927693 has 2 divisors, whose sum is σ = 23927694. Its totient is φ = 23927692.

The previous prime is 23927681. The next prime is 23927699. The reversal of 23927693 is 39672932.

Added to its reverse (39672932) it gives a square (63600625 = 7975²).

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 21325924 + 2601769 = 4618^2 + 1613^2 .

It is a cyclic number.

It is not a de Polignac number, because 23927693 - 2²⁴ = 7150477 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 23927693.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (23927699) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 11963846 + 11963847.

It is an arithmetic number, because the mean of its divisors is an integer number (11963847).

Almost surely, 2^23927693 is an apocalyptic number.

It is an amenable number.

23927693 is a deficient number, since it is larger than the sum of its proper divisors (1).

23927693 is an equidigital number, since it uses as much as digits as its factorization.

23927693 is an evil number, because the sum of its binary digits is even.

The product of its digits is 122472, while the sum is 41.

The square root of 23927693 is about 4891.5941164410. The cubic root of 23927693 is about 288.1599428261.

Adding to 23927693 its reverse (39672932), we get a square (63600625 = 7975²).

The spelling of 23927693 in words is "twenty-three million, nine hundred twenty-seven thousand, six hundred ninety-three".