28600664 has 16 divisors (see below), whose sum is σ = 56781000. Its totient is φ = 13459072.

The previous prime is 28600591. The next prime is 28600669. The reversal of 28600664 is 46600682.

It is a happy number.

It is a self number, because there is not a number n which added to its sum of digits gives 28600664.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (28600669) 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, 105014 + ... + 105285.

Almost surely, 2^28600664 is an apocalyptic number.

It is an amenable number.

28600664 is a deficient number, since it is larger than the sum of its proper divisors (28180336).

28600664 is a wasteful number, since it uses less digits than its factorization.

28600664 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 210322 (or 210318 counting only the distinct ones).

The product of its (nonzero) digits is 13824, while the sum is 32.

The square root of 28600664 is about 5347.9588629682. The cubic root of 28600664 is about 305.8149449966.

The spelling of 28600664 in words is "twenty-eight million, six hundred thousand, six hundred sixty-four".