264332987 has 2 divisors, whose sum is σ = 264332988. Its totient is φ = 264332986.

The previous prime is 264332977. The next prime is 264332989. The reversal of 264332987 is 789233462.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 264332987 - 2⁶ = 264332923 is a prime.

Together with 264332989, it forms a pair of twin primes.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (264332989) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 132166493 + 132166494.

It is an arithmetic number, because the mean of its divisors is an integer number (132166494).

Almost surely, 2^264332987 is an apocalyptic number.

264332987 is a deficient number, since it is larger than the sum of its proper divisors (1).

264332987 is an equidigital number, since it uses as much as digits as its factorization.

264332987 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 435456, while the sum is 44.

The square root of 264332987 is about 16258.3205467231. The cubic root of 264332987 is about 641.7764666285.

The spelling of 264332987 in words is "two hundred sixty-four million, three hundred thirty-two thousand, nine hundred eighty-seven".