863499051 has 24 divisors (see below), whose sum is σ = 1309351680. Its totient is φ = 547317936.

The previous prime is 863499047. The next prime is 863499059. The reversal of 863499051 is 150994368.

It is a happy number.

863499051 is a `hidden beast` number, since 8 + 634 + 9 + 9 + 0 + 5 + 1 = 666.

It is not a de Polignac number, because 863499051 - 2² = 863499047 is a prime.

It is a super-2 number, since 2×863499051² = 1491261222155801202, which contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 863498988 and 863499006.

It is not an unprimeable number, because it can be changed into a prime (863499059) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 22080 + ... + 47058.

It is an arithmetic number, because the mean of its divisors is an integer number (54556320).

Almost surely, 2^863499051 is an apocalyptic number.

863499051 is a deficient number, since it is larger than the sum of its proper divisors (445852629).

863499051 is a wasteful number, since it uses less digits than its factorization.

863499051 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 25175 (or 25172 counting only the distinct ones).

The product of its (nonzero) digits is 233280, while the sum is 45.

The square root of 863499051 is about 29385.3543623350. The cubic root of 863499051 is about 952.2565199062.

The spelling of 863499051 in words is "eight hundred sixty-three million, four hundred ninety-nine thousand, fifty-one".