866274963 has 8 divisors (see below), whose sum is σ = 1156837776. Its totient is φ = 576614400.

The previous prime is 866274953. The next prime is 866274971. The reversal of 866274963 is 369472668.

It is a happy number.

866274963 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 866274963 - 2⁸ = 866274707 is a prime.

It is not an unprimeable number, because it can be changed into a prime (866274953) 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, 223318 + ... + 227163.

It is an arithmetic number, because the mean of its divisors is an integer number (144604722).

Almost surely, 2^866274963 is an apocalyptic number.

866274963 is a deficient number, since it is larger than the sum of its proper divisors (290562813).

866274963 is a wasteful number, since it uses less digits than its factorization.

866274963 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 451125.

The product of its digits is 2612736, while the sum is 51.

The square root of 866274963 is about 29432.5493798957. The cubic root of 866274963 is about 953.2758426897.

The spelling of 866274963 in words is "eight hundred sixty-six million, two hundred seventy-four thousand, nine hundred sixty-three".