264493423 has 2 divisors, whose sum is σ = 264493424. Its totient is φ = 264493422.

The previous prime is 264493409. The next prime is 264493483. The reversal of 264493423 is 324394462.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 264493423 - 2²¹ = 262396271 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (264493483) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 132246711 + 132246712.

It is an arithmetic number, because the mean of its divisors is an integer number (132246712).

Almost surely, 2^264493423 is an apocalyptic number.

264493423 is a deficient number, since it is larger than the sum of its proper divisors (1).

264493423 is an equidigital number, since it uses as much as digits as its factorization.

264493423 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 124416, while the sum is 37.

The square root of 264493423 is about 16263.2537642380. The cubic root of 264493423 is about 641.9062817103.

The spelling of 264493423 in words is "two hundred sixty-four million, four hundred ninety-three thousand, four hundred twenty-three".