863541028 has 24 divisors (see below), whose sum is σ = 1742372352. Its totient is φ = 366812544.

The previous prime is 863541023. The next prime is 863541037. The reversal of 863541028 is 820145368.

It is a happy number.

863541028 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is not an unprimeable number, because it can be changed into a prime (863541023) 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, 133300 + ... + 139627.

It is an arithmetic number, because the mean of its divisors is an integer number (72598848).

Almost surely, 2^863541028 is an apocalyptic number.

It is an amenable number.

863541028 is an abundant number, since it is smaller than the sum of its proper divisors (878831324).

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

863541028 is a wasteful number, since it uses less digits than its factorization.

863541028 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 273051 (or 273049 counting only the distinct ones).

The product of its (nonzero) digits is 46080, while the sum is 37.

The square root of 863541028 is about 29386.0686040171. The cubic root of 863541028 is about 952.2719502356.

The spelling of 863541028 in words is "eight hundred sixty-three million, five hundred forty-one thousand, twenty-eight".