28660486 has 8 divisors (see below), whose sum is σ = 43081920. Its totient is φ = 14299848.

The previous prime is 28660483. The next prime is 28660501. The reversal of 28660486 is 68406682.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (28660483) 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, 14001 + ... + 15916.

It is an arithmetic number, because the mean of its divisors is an integer number (5385240).

Almost surely, 2^28660486 is an apocalyptic number.

28660486 is a deficient number, since it is larger than the sum of its proper divisors (14421434).

28660486 is a wasteful number, since it uses less digits than its factorization.

28660486 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 30398.

The product of its (nonzero) digits is 110592, while the sum is 40.

The square root of 28660486 is about 5353.5489163731. The cubic root of 28660486 is about 306.0280137253.

The spelling of 28660486 in words is "twenty-eight million, six hundred sixty thousand, four hundred eighty-six".