6863913 has 32 divisors (see below), whose sum is σ = 12134400. Its totient is φ = 3749328.

The previous prime is 6863897. The next prime is 6863939. The reversal of 6863913 is 3193686.

It is a happy number.

6863913 is a `hidden beast` number, since 6 + 8 + 639 + 13 = 666.

It is not a de Polignac number, because 6863913 - 2⁴ = 6863897 is a prime.

It is a super-2 number, since 2×6863913² = 94226603343138, which contains 22 as substring.

6863913 is a lucky number.

It is not an unprimeable number, because it can be changed into a prime (6863953) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 3558 + ... + 5136.

It is an arithmetic number, because the mean of its divisors is an integer number (379200).

Almost surely, 2^6863913 is an apocalyptic number.

6863913 is a gapful number since it is divisible by the number (63) formed by its first and last digit.

It is an amenable number.

6863913 is a deficient number, since it is larger than the sum of its proper divisors (5270487).

6863913 is a wasteful number, since it uses less digits than its factorization.

6863913 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1618 (or 1612 counting only the distinct ones).

The product of its digits is 23328, while the sum is 36.

The square root of 6863913 is about 2619.9070594202. The cubic root of 6863913 is about 190.0453539006.

It can be divided in two parts, 6863 and 913, that added together give a 5-th power (7776 = 6⁵).

The spelling of 6863913 in words is "six million, eight hundred sixty-three thousand, nine hundred thirteen".