6429866 has 16 divisors (see below), whose sum is σ = 10402560. Its totient is φ = 2970720.

The previous prime is 6429799. The next prime is 6429869. The reversal of 6429866 is 6689246.

It is a Harshad number since it is a multiple of its sum of digits (41).

It is not an unprimeable number, because it can be changed into a prime (6429869) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 506 + ... + 3621.

It is an arithmetic number, because the mean of its divisors is an integer number (650160).

Almost surely, 2^6429866 is an apocalyptic number.

6429866 is a deficient number, since it is larger than the sum of its proper divisors (3972694).

6429866 is a wasteful number, since it uses less digits than its factorization.

6429866 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4189.

The product of its digits is 124416, while the sum is 41.

The square root of 6429866 is about 2535.7180442628. The cubic root of 6429866 is about 185.9519087909.

The spelling of 6429866 in words is "six million, four hundred twenty-nine thousand, eight hundred sixty-six".