28276264 has 8 divisors (see below), whose sum is σ = 53018010. Its totient is φ = 14138128.

The previous prime is 28276217. The next prime is 28276267. The reversal of 28276264 is 46267282.

It can be written as a sum of positive squares in only one way, i.e., 18404100 + 9872164 = 4290^2 + 3142^2 .

It is a tau number, because it is divible by the number of its divisors (8).

It is not an unprimeable number, because it can be changed into a prime (28276267) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1767259 + ... + 1767274.

Almost surely, 2^28276264 is an apocalyptic number.

It is an amenable number.

28276264 is a deficient number, since it is larger than the sum of its proper divisors (24741746).

28276264 is a wasteful number, since it uses less digits than its factorization.

28276264 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3534539 (or 3534535 counting only the distinct ones).

The product of its digits is 64512, while the sum is 37.

The square root of 28276264 is about 5317.5430416688. The cubic root of 28276264 is about 304.6543212559.

The spelling of 28276264 in words is "twenty-eight million, two hundred seventy-six thousand, two hundred sixty-four".