6447126 has 24 divisors (see below), whose sum is σ = 15000120. Its totient is φ = 1841952.

The previous prime is 6447121. The next prime is 6447149. The reversal of 6447126 is 6217446.

It is a junction number, because it is equal to n+sod(n) for n = 6447093 and 6447102.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (6447121) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 10671 + ... + 11258.

It is an arithmetic number, because the mean of its divisors is an integer number (625005).

Almost surely, 2^6447126 is an apocalyptic number.

6447126 is an abundant number, since it is smaller than the sum of its proper divisors (8552994).

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

6447126 is a wasteful number, since it uses less digits than its factorization.

6447126 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 21948 (or 21941 counting only the distinct ones).

The product of its digits is 8064, while the sum is 30.

The square root of 6447126 is about 2539.1191385991. The cubic root of 6447126 is about 186.1181466974.

The spelling of 6447126 in words is "six million, four hundred forty-seven thousand, one hundred twenty-six".