28680946 has 8 divisors (see below), whose sum is σ = 49167360. Its totient is φ = 12291828.

The previous prime is 28680941. The next prime is 28680959. The reversal of 28680946 is 64908682.

It is a happy number.

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

It is not an unprimeable number, because it can be changed into a prime (28680941) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1024306 + ... + 1024333.

It is an arithmetic number, because the mean of its divisors is an integer number (6145920).

Almost surely, 2^28680946 is an apocalyptic number.

28680946 is a deficient number, since it is larger than the sum of its proper divisors (20486414).

28680946 is a wasteful number, since it uses less digits than its factorization.

28680946 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2048648.

The product of its (nonzero) digits is 165888, while the sum is 43.

The square root of 28680946 is about 5355.4594574135. The cubic root of 28680946 is about 306.1008183039.

The spelling of 28680946 in words is "twenty-eight million, six hundred eighty thousand, nine hundred forty-six".