863144841 has 32 divisors (see below), whose sum is σ = 1260593152. Its totient is φ = 522158400.

The previous prime is 863144819. The next prime is 863144861. The reversal of 863144841 is 148441368.

863144841 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is not a de Polignac number, because 863144841 - 2⁵ = 863144809 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (39).

It is a Curzon number.

It is a self number, because there is not a number n which added to its sum of digits gives 863144841.

It is not an unprimeable number, because it can be changed into a prime (863144861) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 605856 + ... + 607278.

It is an arithmetic number, because the mean of its divisors is an integer number (39393536).

Almost surely, 2^863144841 is an apocalyptic number.

It is an amenable number.

863144841 is a deficient number, since it is larger than the sum of its proper divisors (397448311).

863144841 is a wasteful number, since it uses less digits than its factorization.

863144841 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1693.

The product of its digits is 73728, while the sum is 39.

The square root of 863144841 is about 29379.3267621979. The cubic root of 863144841 is about 952.1262959018.

The spelling of 863144841 in words is "eight hundred sixty-three million, one hundred forty-four thousand, eight hundred forty-one".