28758395 has 8 divisors (see below), whose sum is σ = 36010656. Its totient is φ = 22006336.

The previous prime is 28758391. The next prime is 28758397. The reversal of 28758395 is 59385782.

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

It is a cyclic number.

It is not a de Polignac number, because 28758395 - 2² = 28758391 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (28758391) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 124922 + ... + 125151.

It is an arithmetic number, because the mean of its divisors is an integer number (4501332).

Almost surely, 2^28758395 is an apocalyptic number.

28758395 is a deficient number, since it is larger than the sum of its proper divisors (7252261).

28758395 is a wasteful number, since it uses less digits than its factorization.

28758395 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 250101.

The product of its digits is 604800, while the sum is 47.

The square root of 28758395 is about 5362.6854280295. The cubic root of 28758395 is about 306.3760985646.

The spelling of 28758395 in words is "twenty-eight million, seven hundred fifty-eight thousand, three hundred ninety-five".