28946666 has 16 divisors (see below), whose sum is σ = 49691904. Its totient is φ = 12388464.

The previous prime is 28946663. The next prime is 28946683. The reversal of 28946666 is 66664982.

28946666 is a modest number, since divided by 6666 gives 2894 as remainder.

It is a self number, because there is not a number n which added to its sum of digits gives 28946666.

It is not an unprimeable number, because it can be changed into a prime (28946663) 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, 19196 + ... + 20648.

It is an arithmetic number, because the mean of its divisors is an integer number (3105744).

Almost surely, 2^28946666 is an apocalyptic number.

28946666 is a deficient number, since it is larger than the sum of its proper divisors (20745238).

28946666 is a wasteful number, since it uses less digits than its factorization.

28946666 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2885.

The product of its digits is 746496, while the sum is 47.

The square root of 28946666 is about 5380.2105906739. The cubic root of 28946666 is about 307.0432233737.

The spelling of 28946666 in words is "twenty-eight million, nine hundred forty-six thousand, six hundred sixty-six".