264680005 has 8 divisors (see below), whose sum is σ = 317716632. Its totient is φ = 211676928.

The previous prime is 264679997. The next prime is 264680011. The reversal of 264680005 is 500086462.

It can be written as a sum of positive squares in 4 ways, for example, as 165019716 + 99660289 = 12846^2 + 9983^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 264680005 - 2³ = 264679997 is a prime.

It is a Duffinian number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 14809 + ... + 27361.

It is an arithmetic number, because the mean of its divisors is an integer number (39714579).

Almost surely, 2^264680005 is an apocalyptic number.

It is an amenable number.

264680005 is a deficient number, since it is larger than the sum of its proper divisors (53036627).

264680005 is a wasteful number, since it uses less digits than its factorization.

264680005 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 16775.

The product of its (nonzero) digits is 11520, while the sum is 31.

The square root of 264680005 is about 16268.9890589428. The cubic root of 264680005 is about 642.0571865416.

The spelling of 264680005 in words is "two hundred sixty-four million, six hundred eighty thousand, five".