28093682 has 4 divisors (see below), whose sum is σ = 42140526. Its totient is φ = 14046840.

The previous prime is 28093679. The next prime is 28093687. The reversal of 28093682 is 28639082.

It is a happy number.

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., 23804641 + 4289041 = 4879^2 + 2071^2 .

It is not an unprimeable number, because it can be changed into a prime (28093687) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 7023419 + ... + 7023422.

Almost surely, 2^28093682 is an apocalyptic number.

28093682 is a deficient number, since it is larger than the sum of its proper divisors (14046844).

28093682 is a wasteful number, since it uses less digits than its factorization.

28093682 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 14046843.

The product of its (nonzero) digits is 41472, while the sum is 38.

The square root of 28093682 is about 5300.3473471085. The cubic root of 28093682 is about 303.9971793944.

The spelling of 28093682 in words is "twenty-eight million, ninety-three thousand, six hundred eighty-two".