28064706 has 8 divisors (see below), whose sum is σ = 56129424. Its totient is φ = 9354900.

The previous prime is 28064693. The next prime is 28064711. The reversal of 28064706 is 60746082.

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

28064706 is an admirable number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 2338720 + ... + 2338731.

It is an arithmetic number, because the mean of its divisors is an integer number (7016178).

Almost surely, 2^28064706 is an apocalyptic number.

28064706 is a primitive abundant number, since it is smaller than the sum of its proper divisors, none of which is abundant.

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

28064706 is a wasteful number, since it uses less digits than its factorization.

28064706 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4677456.

The product of its (nonzero) digits is 16128, while the sum is 33.

The square root of 28064706 is about 5297.6132361659. The cubic root of 28064706 is about 303.8926285749.

The spelling of 28064706 in words is "twenty-eight million, sixty-four thousand, seven hundred six".