28212063 has 16 divisors (see below), whose sum is σ = 41617152. Its totient is φ = 16856000.

The previous prime is 28212047. The next prime is 28212071. The reversal of 28212063 is 36021282.

It is a cyclic number.

It is not a de Polignac number, because 28212063 - 2⁴ = 28212047 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (28212013) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 3678 + ... + 8363.

It is an arithmetic number, because the mean of its divisors is an integer number (2601072).

Almost surely, 2^28212063 is an apocalyptic number.

28212063 is a deficient number, since it is larger than the sum of its proper divisors (13405089).

28212063 is a wasteful number, since it uses less digits than its factorization.

28212063 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 12126.

The product of its (nonzero) digits is 1152, while the sum is 24.

The square root of 28212063 is about 5311.5028946617. The cubic root of 28212063 is about 304.4235749108.

It can be divided in two parts, 2821 and 2063, that added together give a palindrome (4884).

The spelling of 28212063 in words is "twenty-eight million, two hundred twelve thousand, sixty-three".