264420797 has 2 divisors, whose sum is σ = 264420798. Its totient is φ = 264420796.

The previous prime is 264420721. The next prime is 264420799. The reversal of 264420797 is 797024462.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 264420121 + 676 = 16261^2 + 26^2 .

It is a cyclic number.

It is not a de Polignac number, because 264420797 - 2¹⁰ = 264419773 is a prime.

It is a super-2 number, since 2×264420797² = 139836715772230418, which contains 22 as substring.

Together with 264420799, it forms a pair of twin primes.

It is a Chen prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (264420799) 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, 132210398 + 132210399.

It is an arithmetic number, because the mean of its divisors is an integer number (132210399).

Almost surely, 2^264420797 is an apocalyptic number.

It is an amenable number.

264420797 is a deficient number, since it is larger than the sum of its proper divisors (1).

264420797 is an equidigital number, since it uses as much as digits as its factorization.

264420797 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 169344, while the sum is 41.

The square root of 264420797 is about 16261.0207859162. The cubic root of 264420797 is about 641.8475236604.

The spelling of 264420797 in words is "two hundred sixty-four million, four hundred twenty thousand, seven hundred ninety-seven".