865817452 has 12 divisors (see below), whose sum is σ = 1536521616. Its totient is φ = 426811280.

The previous prime is 865817437. The next prime is 865817453. The reversal of 865817452 is 254718568.

It is not an unprimeable number, because it can be changed into a prime (865817453) by changing a digit.

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, 1524043 + ... + 1524610.

It is an arithmetic number, because the mean of its divisors is an integer number (128043468).

Almost surely, 2^865817452 is an apocalyptic number.

It is an amenable number.

865817452 is a deficient number, since it is larger than the sum of its proper divisors (670704164).

865817452 is a wasteful number, since it uses less digits than its factorization.

865817452 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3048728 (or 3048726 counting only the distinct ones).

The product of its digits is 537600, while the sum is 46.

The square root of 865817452 is about 29424.7761588767. The cubic root of 865817452 is about 953.1079933714.

The spelling of 865817452 in words is "eight hundred sixty-five million, eight hundred seventeen thousand, four hundred fifty-two".