28739682 has 12 divisors (see below), whose sum is σ = 62269350. Its totient is φ = 9579888.

The previous prime is 28739681. The next prime is 28739693. The reversal of 28739682 is 28693782.

It can be written as a sum of positive squares in only one way, i.e., 19793601 + 8946081 = 4449^2 + 2991^2 .

It is a super-2 number, since 2×28739682² = 1651938642922248, which contains 22 as substring.

It is a hoax number, since the sum of its digits (45) coincides with the sum of the digits of its distinct prime factors.

It is not an unprimeable number, because it can be changed into a prime (28739681) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 798307 + ... + 798342.

Almost surely, 2^28739682 is an apocalyptic number.

28739682 is an abundant number, since it is smaller than the sum of its proper divisors (33529668).

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

28739682 is a wasteful number, since it uses less digits than its factorization.

28739682 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1596657 (or 1596654 counting only the distinct ones).

The product of its digits is 290304, while the sum is 45.

The square root of 28739682 is about 5360.9404025786. The cubic root of 28739682 is about 306.3096314813.

The spelling of 28739682 in words is "twenty-eight million, seven hundred thirty-nine thousand, six hundred eighty-two".