264893785 has 8 divisors (see below), whose sum is σ = 342324360. Its totient is φ = 195613824.

The previous prime is 264893777. The next prime is 264893789. The reversal of 264893785 is 587398462.

It can be written as a sum of positive squares in 4 ways, for example, as 11861136 + 253032649 = 3444^2 + 15907^2 .

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 264893785 - 2³ = 264893777 is a prime.

It is not an unprimeable number, because it can be changed into a prime (264893789) 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, 2037580 + ... + 2037709.

It is an arithmetic number, because the mean of its divisors is an integer number (42790545).

Almost surely, 2^264893785 is an apocalyptic number.

It is an amenable number.

264893785 is a deficient number, since it is larger than the sum of its proper divisors (77430575).

264893785 is a wasteful number, since it uses less digits than its factorization.

264893785 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4075307.

The product of its digits is 2903040, while the sum is 52.

The square root of 264893785 is about 16275.5579013440. The cubic root of 264893785 is about 642.2300015698.

The spelling of 264893785 in words is "two hundred sixty-four million, eight hundred ninety-three thousand, seven hundred eighty-five".