28773834 has 16 divisors (see below), whose sum is σ = 57963360. Its totient is φ = 9522000.

The previous prime is 28773821. The next prime is 28773853. The reversal of 28773834 is 43837782.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 16417 + ... + 18084.

It is an arithmetic number, because the mean of its divisors is an integer number (3622710).

Almost surely, 2^28773834 is an apocalyptic number.

28773834 is an abundant number, since it is smaller than the sum of its proper divisors (29189526).

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

28773834 is a wasteful number, since it uses less digits than its factorization.

28773834 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 34645.

The product of its digits is 225792, while the sum is 42.

The square root of 28773834 is about 5364.1247189080. The cubic root of 28773834 is about 306.4309149568.

The spelling of 28773834 in words is "twenty-eight million, seven hundred seventy-three thousand, eight hundred thirty-four".