28854946 has 4 divisors (see below), whose sum is σ = 43282422. Its totient is φ = 14427472.

The previous prime is 28854941. The next prime is 28854961. The reversal of 28854946 is 64945882.

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., 23280625 + 5574321 = 4825^2 + 2361^2 .

It is a junction number, because it is equal to n+sod(n) for n = 28854896 and 28854905.

It is not an unprimeable number, because it can be changed into a prime (28854941) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 7213735 + ... + 7213738.

Almost surely, 2^28854946 is an apocalyptic number.

28854946 is a deficient number, since it is larger than the sum of its proper divisors (14427476).

28854946 is a wasteful number, since it uses less digits than its factorization.

28854946 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 14427475.

The product of its digits is 552960, while the sum is 46.

The square root of 28854946 is about 5371.6799979150. The cubic root of 28854946 is about 306.7185826305.

The spelling of 28854946 in words is "twenty-eight million, eight hundred fifty-four thousand, nine hundred forty-six".