28834901 has 4 divisors (see below), whose sum is σ = 28980000. Its totient is φ = 28689804.

The previous prime is 28834891. The next prime is 28834933. The reversal of 28834901 is 10943882.

It is a happy number.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-28834901 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (28834501) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 72251 + ... + 72648.

It is an arithmetic number, because the mean of its divisors is an integer number (7245000).

Almost surely, 2^28834901 is an apocalyptic number.

It is an amenable number.

28834901 is a deficient number, since it is larger than the sum of its proper divisors (145099).

28834901 is a wasteful number, since it uses less digits than its factorization.

28834901 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 145098.

The product of its (nonzero) digits is 13824, while the sum is 35.

The square root of 28834901 is about 5369.8138701448. The cubic root of 28834901 is about 306.6475422594.

The spelling of 28834901 in words is "twenty-eight million, eight hundred thirty-four thousand, nine hundred one".