264329491 has 2 divisors, whose sum is σ = 264329492. Its totient is φ = 264329490.

The previous prime is 264329473. The next prime is 264329537. The reversal of 264329491 is 194923462.

264329491 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 264329491 - 2⁹ = 264328979 is a prime.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (264329411) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 132164745 + 132164746.

It is an arithmetic number, because the mean of its divisors is an integer number (132164746).

Almost surely, 2^264329491 is an apocalyptic number.

264329491 is a deficient number, since it is larger than the sum of its proper divisors (1).

264329491 is an equidigital number, since it uses as much as digits as its factorization.

264329491 is an evil number, because the sum of its binary digits is even.

The product of its digits is 93312, while the sum is 40.

The square root of 264329491 is about 16258.2130321878. The cubic root of 264329491 is about 641.7736372926.

The spelling of 264329491 in words is "two hundred sixty-four million, three hundred twenty-nine thousand, four hundred ninety-one".