28886934 has 8 divisors (see below), whose sum is σ = 57773880. Its totient is φ = 9628976.

The previous prime is 28886917. The next prime is 28886939. The reversal of 28886934 is 43968882.

It is a happy number.

It is a sphenic number, since it is the product of 3 distinct primes.

28886934 is an admirable number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (28886939) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 2407239 + ... + 2407250.

It is an arithmetic number, because the mean of its divisors is an integer number (7221735).

Almost surely, 2^28886934 is an apocalyptic number.

28886934 is a primitive abundant number, since it is smaller than the sum of its proper divisors, none of which is abundant.

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

28886934 is a wasteful number, since it uses less digits than its factorization.

28886934 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4814494.

The product of its digits is 663552, while the sum is 48.

The square root of 28886934 is about 5374.6566401957. The cubic root of 28886934 is about 306.8318814125.

The spelling of 28886934 in words is "twenty-eight million, eight hundred eighty-six thousand, nine hundred thirty-four".