28100834 has 16 divisors (see below), whose sum is σ = 43439928. Its totient is φ = 13623552.

The previous prime is 28100833. The next prime is 28100837. The reversal of 28100834 is 43800182.

It can be written as a sum of positive squares in 4 ways, for example, as 27008809 + 1092025 = 5197^2 + 1045^2 .

It is not an unprimeable number, because it can be changed into a prime (28100833) 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, 31604 + ... + 32480.

Almost surely, 2^28100834 is an apocalyptic number.

28100834 is a deficient number, since it is larger than the sum of its proper divisors (15339094).

28100834 is a wasteful number, since it uses less digits than its factorization.

28100834 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1349.

The product of its (nonzero) digits is 1536, while the sum is 26.

The square root of 28100834 is about 5301.0219769399. The cubic root of 28100834 is about 304.0229740832.

The spelling of 28100834 in words is "twenty-eight million, one hundred thousand, eight hundred thirty-four".