28106634 has 32 divisors (see below), whose sum is σ = 57576960. Its totient is φ = 9144432.

The previous prime is 28106609. The next prime is 28106647. The reversal of 28106634 is 43660182.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 55627 + ... + 56129.

It is an arithmetic number, because the mean of its divisors is an integer number (1799280).

Almost surely, 2^28106634 is an apocalyptic number.

28106634 is an abundant number, since it is smaller than the sum of its proper divisors (29470326).

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

28106634 is a wasteful number, since it uses less digits than its factorization.

28106634 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 714.

The product of its (nonzero) digits is 6912, while the sum is 30.

The square root of 28106634 is about 5301.5690130376. The cubic root of 28106634 is about 304.0438893812.

The spelling of 28106634 in words is "twenty-eight million, one hundred six thousand, six hundred thirty-four".