28759394 has 16 divisors (see below), whose sum is σ = 44350848. Its totient is φ = 13979952.

The previous prime is 28759391. The next prime is 28759403. The reversal of 28759394 is 49395782.

It is a happy number.

It is a Harshad number since it is a multiple of its sum of digits (47).

It is not an unprimeable number, because it can be changed into a prime (28759391) 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, 14384 + ... + 16260.

It is an arithmetic number, because the mean of its divisors is an integer number (2771928).

Almost surely, 2^28759394 is an apocalyptic number.

28759394 is a deficient number, since it is larger than the sum of its proper divisors (15591454).

28759394 is a wasteful number, since it uses less digits than its factorization.

28759394 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2089.

The product of its digits is 544320, while the sum is 47.

The square root of 28759394 is about 5362.7785708530. The cubic root of 28759394 is about 306.3796461221.

The spelling of 28759394 in words is "twenty-eight million, seven hundred fifty-nine thousand, three hundred ninety-four".