28830658 has 8 divisors (see below), whose sum is σ = 43268940. Its totient is φ = 14407680.

The previous prime is 28830653. The next prime is 28830671. The reversal of 28830658 is 85603882.

It can be written as a sum of positive squares in 2 ways, for example, as 24433249 + 4397409 = 4943^2 + 2097^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is a self number, because there is not a number n which added to its sum of digits gives 28830658.

It is not an unprimeable number, because it can be changed into a prime (28830653) 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, 4578 + ... + 8866.

Almost surely, 2^28830658 is an apocalyptic number.

28830658 is a deficient number, since it is larger than the sum of its proper divisors (14438282).

28830658 is a wasteful number, since it uses less digits than its factorization.

28830658 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7652.

The product of its (nonzero) digits is 92160, while the sum is 40.

The square root of 28830658 is about 5369.4187767392. The cubic root of 28830658 is about 306.6325006570.

The spelling of 28830658 in words is "twenty-eight million, eight hundred thirty thousand, six hundred fifty-eight".