26023493 has 2 divisors, whose sum is σ = 26023494. Its totient is φ = 26023492.

The previous prime is 26023489. The next prime is 26023523. The reversal of 26023493 is 39432062.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 25877569 + 145924 = 5087^2 + 382^2 .

It is a cyclic number.

It is not a de Polignac number, because 26023493 - 2² = 26023489 is a prime.

It is a Sophie Germain prime.

It is a Curzon number.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (26023433) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 13011746 + 13011747.

It is an arithmetic number, because the mean of its divisors is an integer number (13011747).

Almost surely, 2^26023493 is an apocalyptic number.

It is an amenable number.

26023493 is a deficient number, since it is larger than the sum of its proper divisors (1).

26023493 is an equidigital number, since it uses as much as digits as its factorization.

26023493 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 7776, while the sum is 29.

The square root of 26023493 is about 5101.3226716215. The cubic root of 26023493 is about 296.3388080821.

The spelling of 26023493 in words is "twenty-six million, twenty-three thousand, four hundred ninety-three".