28806276 has 24 divisors (see below), whose sum is σ = 69032320. Its totient is φ = 9342432.

The previous prime is 28806269. The next prime is 28806277. The reversal of 28806276 is 67260882.

It is not an unprimeable number, because it can be changed into a prime (28806277) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 31996 + ... + 32883.

Almost surely, 2^28806276 is an apocalyptic number.

It is an amenable number.

28806276 is an abundant number, since it is smaller than the sum of its proper divisors (40226044).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

28806276 is a wasteful number, since it uses less digits than its factorization.

28806276 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 64923 (or 64921 counting only the distinct ones).

The product of its (nonzero) digits is 64512, while the sum is 39.

The square root of 28806276 is about 5367.1478459234. The cubic root of 28806276 is about 306.5460368866.

The spelling of 28806276 in words is "twenty-eight million, eight hundred six thousand, two hundred seventy-six".