265940893 has 2 divisors, whose sum is σ = 265940894. Its totient is φ = 265940892.

The previous prime is 265940869. The next prime is 265940897. The reversal of 265940893 is 398049562.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 185695129 + 80245764 = 13627^2 + 8958^2 .

It is a cyclic number.

It is not a de Polignac number, because 265940893 - 2⁵ = 265940861 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (265940897) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 132970446 + 132970447.

It is an arithmetic number, because the mean of its divisors is an integer number (132970447).

Almost surely, 2^265940893 is an apocalyptic number.

It is an amenable number.

265940893 is a deficient number, since it is larger than the sum of its proper divisors (1).

265940893 is an equidigital number, since it uses as much as digits as its factorization.

265940893 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 466560, while the sum is 46.

The square root of 265940893 is about 16307.6942882800. The cubic root of 265940893 is about 643.0751201995.

The spelling of 265940893 in words is "two hundred sixty-five million, nine hundred forty thousand, eight hundred ninety-three".