28716682 has 4 divisors (see below), whose sum is σ = 43075026. Its totient is φ = 14358340.

The previous prime is 28716643. The next prime is 28716683. The reversal of 28716682 is 28661782.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 28661782 = 2 ⋅14330891.

It can be written as a sum of positive squares in only one way, i.e., 26409321 + 2307361 = 5139^2 + 1519^2 .

It is not an unprimeable number, because it can be changed into a prime (28716683) by changing a digit.

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 as a sum of consecutive naturals, namely, 7179169 + ... + 7179172.

Almost surely, 2^28716682 is an apocalyptic number.

28716682 is a deficient number, since it is larger than the sum of its proper divisors (14358344).

28716682 is a wasteful number, since it uses less digits than its factorization.

28716682 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 14358343.

The product of its digits is 64512, while the sum is 40.

The square root of 28716682 is about 5358.7948271976. The cubic root of 28716682 is about 306.2278977802.

The spelling of 28716682 in words is "twenty-eight million, seven hundred sixteen thousand, six hundred eighty-two".