28214366 has 4 divisors (see below), whose sum is σ = 42321552. Its totient is φ = 14107182.

The previous prime is 28214357. The next prime is 28214369. The reversal of 28214366 is 66341282.

It is a semiprime because it is the product of two primes.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (28214369) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 7053590 + ... + 7053593.

It is an arithmetic number, because the mean of its divisors is an integer number (10580388).

Almost surely, 2^28214366 is an apocalyptic number.

28214366 is a deficient number, since it is larger than the sum of its proper divisors (14107186).

28214366 is a wasteful number, since it uses less digits than its factorization.

28214366 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 14107185.

The product of its digits is 13824, while the sum is 32.

The square root of 28214366 is about 5311.7196838689. The cubic root of 28214366 is about 304.4318582282.

The spelling of 28214366 in words is "twenty-eight million, two hundred fourteen thousand, three hundred sixty-six".