264698087 has 2 divisors, whose sum is σ = 264698088. Its totient is φ = 264698086.

The previous prime is 264698081. The next prime is 264698089. The reversal of 264698087 is 780896462.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 264698087 - 2⁸ = 264697831 is a prime.

It is a super-2 number, since 2×264698087² = 140130154522919138, which contains 22 as substring.

Together with 264698089, 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 (264698081) 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, 132349043 + 132349044.

It is an arithmetic number, because the mean of its divisors is an integer number (132349044).

Almost surely, 2^264698087 is an apocalyptic number.

264698087 is a deficient number, since it is larger than the sum of its proper divisors (1).

264698087 is an equidigital number, since it uses as much as digits as its factorization.

264698087 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 1161216, while the sum is 50.

The square root of 264698087 is about 16269.5447692921. The cubic root of 264698087 is about 642.0718072326.

The spelling of 264698087 in words is "two hundred sixty-four million, six hundred ninety-eight thousand, eighty-seven".