28606486 has 4 divisors (see below), whose sum is σ = 42909732. Its totient is φ = 14303242.

The previous prime is 28606477. The next prime is 28606493. The reversal of 28606486 is 68460682.

It is a semiprime because it is the product of two primes.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 7151620 + ... + 7151623.

It is an arithmetic number, because the mean of its divisors is an integer number (10727433).

Almost surely, 2^28606486 is an apocalyptic number.

28606486 is a deficient number, since it is larger than the sum of its proper divisors (14303246).

28606486 is a wasteful number, since it uses less digits than its factorization.

28606486 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 14303245.

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

The square root of 28606486 is about 5348.5031550893. The cubic root of 28606486 is about 305.8356943262.

It can be divided in two parts, 28606 and 486, that added together give a palindrome (29092).

The spelling of 28606486 in words is "twenty-eight million, six hundred six thousand, four hundred eighty-six".