28536830 has 16 divisors (see below), whose sum is σ = 58704480. Its totient is φ = 9784032.

The previous prime is 28536797. The next prime is 28536847. The reversal of 28536830 is 3863582.

It is a Harshad number since it is a multiple of its sum of digits (35).

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 203765 + ... + 203904.

It is an arithmetic number, because the mean of its divisors is an integer number (3669030).

Almost surely, 2^28536830 is an apocalyptic number.

28536830 is an abundant number, since it is smaller than the sum of its proper divisors (30167650).

28536830 is a wasteful number, since it uses less digits than its factorization.

28536830 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 407683.

The product of its (nonzero) digits is 34560, while the sum is 35.

The square root of 28536830 is about 5341.9874578662. The cubic root of 28536830 is about 305.5872587613.

The spelling of 28536830 in words is "twenty-eight million, five hundred thirty-six thousand, eight hundred thirty".