865073552 has 20 divisors (see below), whose sum is σ = 1915520256. Its totient is φ = 370745760.

The previous prime is 865073549. The next prime is 865073563. The reversal of 865073552 is 255370568.

It is an unprimeable number.

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 in 3 ways as a sum of consecutive naturals, for example, 3861824 + ... + 3862047.

Almost surely, 2^865073552 is an apocalyptic number.

It is an amenable number.

865073552 is an abundant number, since it is smaller than the sum of its proper divisors (1050446704).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

865073552 is a wasteful number, since it uses less digits than its factorization.

865073552 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7723886 (or 7723880 counting only the distinct ones).

The product of its (nonzero) digits is 252000, while the sum is 41.

The square root of 865073552 is about 29412.1327346386. The cubic root of 865073552 is about 952.8349488278.

The spelling of 865073552 in words is "eight hundred sixty-five million, seventy-three thousand, five hundred fifty-two".