28267964 has 12 divisors (see below), whose sum is σ = 49677600. Its totient is φ = 14074368.

The previous prime is 28267961. The next prime is 28267979. The reversal of 28267964 is 46976282.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (28267961) 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, 13829 + ... + 15740.

It is an arithmetic number, because the mean of its divisors is an integer number (4139800).

Almost surely, 2^28267964 is an apocalyptic number.

It is an amenable number.

28267964 is a deficient number, since it is larger than the sum of its proper divisors (21409636).

28267964 is a wasteful number, since it uses less digits than its factorization.

28267964 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 29812 (or 29810 counting only the distinct ones).

The product of its digits is 290304, while the sum is 44.

The square root of 28267964 is about 5316.7625487697. The cubic root of 28267964 is about 304.6245096995.

The spelling of 28267964 in words is "twenty-eight million, two hundred sixty-seven thousand, nine hundred sixty-four".