6918972 has 12 divisors (see below), whose sum is σ = 16144296. Its totient is φ = 2306320.

The previous prime is 6918959. The next prime is 6918973. The reversal of 6918972 is 2798196.

6918972 is digitally balanced in base 4, because in such base it contains all the possibile digits an equal number of times.

It is a tau number, because it is divible by the number of its divisors (12).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (6918973) 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, 288279 + ... + 288302.

It is an arithmetic number, because the mean of its divisors is an integer number (1345358).

Almost surely, 2^6918972 is an apocalyptic number.

It is an amenable number.

6918972 is an abundant number, since it is smaller than the sum of its proper divisors (9225324).

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

6918972 is a wasteful number, since it uses less digits than its factorization.

6918972 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 576588 (or 576586 counting only the distinct ones).

The product of its digits is 54432, while the sum is 42.

The square root of 6918972 is about 2630.3938868542. The cubic root of 6918972 is about 190.5521519368.

The spelling of 6918972 in words is "six million, nine hundred eighteen thousand, nine hundred seventy-two".