28776734 has 8 divisors (see below), whose sum is σ = 49331568. Its totient is φ = 12332880.

The previous prime is 28776731. The next prime is 28776739. The reversal of 28776734 is 43767782.

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

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (28776731) 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, 1027727 + ... + 1027754.

It is an arithmetic number, because the mean of its divisors is an integer number (6166446).

Almost surely, 2^28776734 is an apocalyptic number.

28776734 is a deficient number, since it is larger than the sum of its proper divisors (20554834).

28776734 is a wasteful number, since it uses less digits than its factorization.

28776734 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2055490.

The product of its digits is 395136, while the sum is 44.

The square root of 28776734 is about 5364.3950264685. The cubic root of 28776734 is about 306.4412092610.

The spelling of 28776734 in words is "twenty-eight million, seven hundred seventy-six thousand, seven hundred thirty-four".