28371682 has 4 divisors (see below), whose sum is σ = 42557526. Its totient is φ = 14185840.

The previous prime is 28371677. The next prime is 28371683. The reversal of 28371682 is 28617382.

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

It can be written as a sum of positive squares in only one way, i.e., 27973521 + 398161 = 5289^2 + 631^2 .

It is not an unprimeable number, because it can be changed into a prime (28371683) 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, 7092919 + ... + 7092922.

Almost surely, 2^28371682 is an apocalyptic number.

28371682 is a deficient number, since it is larger than the sum of its proper divisors (14185844).

28371682 is a wasteful number, since it uses less digits than its factorization.

28371682 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 14185843.

The product of its digits is 32256, while the sum is 37.

The square root of 28371682 is about 5326.5074861489. The cubic root of 28371682 is about 304.9966209426.

The spelling of 28371682 in words is "twenty-eight million, three hundred seventy-one thousand, six hundred eighty-two".