28943734 has 8 divisors (see below), whose sum is σ = 43450200. Its totient is φ = 14460336.

The previous prime is 28943701. The next prime is 28943749. The reversal of 28943734 is 43734982.

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

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 2184 + ... + 7915.

It is an arithmetic number, because the mean of its divisors is an integer number (5431275).

Almost surely, 2^28943734 is an apocalyptic number.

28943734 is a deficient number, since it is larger than the sum of its proper divisors (14506466).

28943734 is a wasteful number, since it uses less digits than its factorization.

28943734 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 11534.

The product of its digits is 145152, while the sum is 40.

The square root of 28943734 is about 5379.9381037332. The cubic root of 28943734 is about 307.0328562486.

The spelling of 28943734 in words is "twenty-eight million, nine hundred forty-three thousand, seven hundred thirty-four".