28885946 has 8 divisors (see below), whose sum is σ = 43571520. Its totient is φ = 14362108.

The previous prime is 28885939. The next prime is 28885949. The reversal of 28885946 is 64958882.

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

It is a junction number, because it is equal to n+sod(n) for n = 28885894 and 28885903.

It is not an unprimeable number, because it can be changed into a prime (28885949) 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, 39986 + ... + 40701.

It is an arithmetic number, because the mean of its divisors is an integer number (5446440).

Almost surely, 2^28885946 is an apocalyptic number.

28885946 is a deficient number, since it is larger than the sum of its proper divisors (14685574).

28885946 is a wasteful number, since it uses less digits than its factorization.

28885946 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 80868.

The product of its digits is 1105920, while the sum is 50.

The square root of 28885946 is about 5374.5647265616. The cubic root of 28885946 is about 306.8283832524.

The spelling of 28885946 in words is "twenty-eight million, eight hundred eighty-five thousand, nine hundred forty-six".