6719144 has 16 divisors (see below), whose sum is σ = 12741300. Its totient is φ = 3321472.

The previous prime is 6719143. The next prime is 6719149. The reversal of 6719144 is 4419176.

It can be written as a sum of positive squares in 2 ways, for example, as 6604900 + 114244 = 2570^2 + 338^2 .

It is a self number, because there is not a number n which added to its sum of digits gives 6719144.

It is not an unprimeable number, because it can be changed into a prime (6719143) 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, 4007 + ... + 5430.

Almost surely, 2^6719144 is an apocalyptic number.

It is an amenable number.

6719144 is a deficient number, since it is larger than the sum of its proper divisors (6022156).

6719144 is a wasteful number, since it uses less digits than its factorization.

6719144 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 9532 (or 9528 counting only the distinct ones).

The product of its digits is 6048, while the sum is 32.

The square root of 6719144 is about 2592.1311695206. The cubic root of 6719144 is about 188.6997462811.

Adding to 6719144 its sum of digits (32), we get a palindrome (6719176).

Subtracting from 6719144 its reverse (4419176), we obtain a cube (2299968 = 132³).

The spelling of 6719144 in words is "six million, seven hundred nineteen thousand, one hundred forty-four".