28769258 has 8 divisors (see below), whose sum is σ = 49318752. Its totient is φ = 12329676.

The previous prime is 28769243. The next prime is 28769261. The reversal of 28769258 is 85296782.

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

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, 1027460 + ... + 1027487.

It is an arithmetic number, because the mean of its divisors is an integer number (6164844).

Almost surely, 2^28769258 is an apocalyptic number.

28769258 is a deficient number, since it is larger than the sum of its proper divisors (20549494).

28769258 is a wasteful number, since it uses less digits than its factorization.

28769258 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2054956.

The product of its digits is 483840, while the sum is 47.

The square root of 28769258 is about 5363.6981645130. The cubic root of 28769258 is about 306.4146698478.

The spelling of 28769258 in words is "twenty-eight million, seven hundred sixty-nine thousand, two hundred fifty-eight".