264485839 has 4 divisors (see below), whose sum is σ = 267457680. Its totient is φ = 261514000.

The previous prime is 264485821. The next prime is 264485843. The reversal of 264485839 is 938584462.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 264485839 - 2⁹ = 264485327 is a prime.

It is a Smith number, since the sum of its digits (49) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 264485792 and 264485801.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (264485869) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1485787 + ... + 1485964.

It is an arithmetic number, because the mean of its divisors is an integer number (66864420).

Almost surely, 2^264485839 is an apocalyptic number.

264485839 is a deficient number, since it is larger than the sum of its proper divisors (2971841).

264485839 is an equidigital number, since it uses as much as digits as its factorization.

264485839 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2971840.

The product of its digits is 1658880, while the sum is 49.

The square root of 264485839 is about 16263.0205988924. The cubic root of 264485839 is about 641.9001463797.

The spelling of 264485839 in words is "two hundred sixty-four million, four hundred eighty-five thousand, eight hundred thirty-nine".