6945863 has 4 divisors (see below), whose sum is σ = 6953688. Its totient is φ = 6938040.

The previous prime is 6945857. The next prime is 6945881. The reversal of 6945863 is 3685496.

It is a semiprime because it is the product of two primes, and also a brilliant number, because the two primes have the same length.

It is a cyclic number.

It is not a de Polignac number, because 6945863 - 2⁸ = 6945607 is a prime.

It is a super-3 number, since 3×6945863³ (a number of 22 digits) contains 333 as substring.

It is a d-powerful number, because it can be written as 6² + 9 + 4⁸ + 5³ + 8⁷ + 6² + 3¹⁴ .

It is a Duffinian number.

It is a nialpdrome in base 14.

It is a self number, because there is not a number n which added to its sum of digits gives 6945863.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (6945803) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 2381 + ... + 4422.

It is an arithmetic number, because the mean of its divisors is an integer number (1738422).

Almost surely, 2^6945863 is an apocalyptic number.

6945863 is a deficient number, since it is larger than the sum of its proper divisors (7825).

6945863 is a wasteful number, since it uses less digits than its factorization.

6945863 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7824.

The product of its digits is 155520, while the sum is 41.

The square root of 6945863 is about 2635.5005217226. The cubic root of 6945863 is about 190.7986969338.

The spelling of 6945863 in words is "six million, nine hundred forty-five thousand, eight hundred sixty-three".