6905144 has 8 divisors (see below), whose sum is σ = 12947160. Its totient is φ = 3452568.

The previous prime is 6905137. The next prime is 6905149. The reversal of 6905144 is 4415096.

It is a tau number, because it is divible by the number of its divisors (8).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (6905149) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 431564 + ... + 431579.

It is an arithmetic number, because the mean of its divisors is an integer number (1618395).

Almost surely, 2^6905144 is an apocalyptic number.

It is an amenable number.

6905144 is a deficient number, since it is larger than the sum of its proper divisors (6042016).

6905144 is a wasteful number, since it uses less digits than its factorization.

6905144 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 863149 (or 863145 counting only the distinct ones).

The product of its (nonzero) digits is 4320, while the sum is 29.

The square root of 6905144 is about 2627.7640685571. The cubic root of 6905144 is about 190.4251237944.

The spelling of 6905144 in words is "six million, nine hundred five thousand, one hundred forty-four".