264421613 has 8 divisors (see below), whose sum is σ = 279661920. Its totient is φ = 249313680.

The previous prime is 264421609. The next prime is 264421627. The reversal of 264421613 is 316124462.

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 264421613 - 2² = 264421609 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (264421693) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 28970 + ... + 36987.

It is an arithmetic number, because the mean of its divisors is an integer number (34957740).

Almost surely, 2^264421613 is an apocalyptic number.

It is an amenable number.

264421613 is a deficient number, since it is larger than the sum of its proper divisors (15240307).

264421613 is a wasteful number, since it uses less digits than its factorization.

264421613 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 66187.

The product of its digits is 6912, while the sum is 29.

The square root of 264421613 is about 16261.0458765726. The cubic root of 264421613 is about 641.8481839048.

The spelling of 264421613 in words is "two hundred sixty-four million, four hundred twenty-one thousand, six hundred thirteen".