863514993 has 16 divisors (see below), whose sum is σ = 1273715712. Its totient is φ = 515970000.

The previous prime is 863514989. The next prime is 863515027. The reversal of 863514993 is 399415368.

863514993 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 863514993 - 2² = 863514989 is a prime.

It is not an unprimeable number, because it can be changed into a prime (863514913) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 181933 + ... + 186618.

It is an arithmetic number, because the mean of its divisors is an integer number (79607232).

Almost surely, 2^863514993 is an apocalyptic number.

It is an amenable number.

863514993 is a deficient number, since it is larger than the sum of its proper divisors (410200719).

863514993 is a wasteful number, since it uses less digits than its factorization.

863514993 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 368636.

The product of its digits is 699840, while the sum is 48.

The square root of 863514993 is about 29385.6256186592. The cubic root of 863514993 is about 952.2623800864.

The spelling of 863514993 in words is "eight hundred sixty-three million, five hundred fourteen thousand, nine hundred ninety-three".