28830672 has 60 divisors (see below), whose sum is σ = 86898084. Its totient is φ = 8870400.

The previous prime is 28830671. The next prime is 28830701. The reversal of 28830672 is 27603882.

It is a happy number.

28830672 is a `hidden beast` number, since 288 + 306 + 72 = 666.

It can be written as a sum of positive squares in 2 ways, for example, as 18870336 + 9960336 = 4344^2 + 3156^2 .

It is a Harshad number since it is a multiple of its sum of digits (36).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (28830671) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 5829 + ... + 9572.

Almost surely, 2^28830672 is an apocalyptic number.

It is an amenable number.

28830672 is an abundant number, since it is smaller than the sum of its proper divisors (58067412).

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

28830672 is a wasteful number, since it uses less digits than its factorization.

28830672 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 15428 (or 15419 counting only the distinct ones).

The product of its (nonzero) digits is 32256, while the sum is 36.

The square root of 28830672 is about 5369.4200804184. The cubic root of 28830672 is about 306.6325502900.

The spelling of 28830672 in words is "twenty-eight million, eight hundred thirty thousand, six hundred seventy-two".