28682930 has 8 divisors (see below), whose sum is σ = 51629292. Its totient is φ = 11473168.

The previous prime is 28682917. The next prime is 28682963. The reversal of 28682930 is 3928682.

It is a happy number.

It can be written as a sum of positive squares in 2 ways, for example, as 28633201 + 49729 = 5351^2 + 223^2 .

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

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1434137 + ... + 1434156.

Almost surely, 2^28682930 is an apocalyptic number.

28682930 is a deficient number, since it is larger than the sum of its proper divisors (22946362).

28682930 is a wasteful number, since it uses less digits than its factorization.

28682930 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2868300.

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

The square root of 28682930 is about 5355.6446857498. The cubic root of 28682930 is about 306.1078763001.

The spelling of 28682930 in words is "twenty-eight million, six hundred eighty-two thousand, nine hundred thirty".