28753874 has 8 divisors (see below), whose sum is σ = 44182908. Its totient is φ = 14026240.

The previous prime is 28753861. The next prime is 28753903. The reversal of 28753874 is 47835782.

It is a happy number.

It can be written as a sum of positive squares in 2 ways, for example, as 27931225 + 822649 = 5285^2 + 907^2 .

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

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 175247 + ... + 175410.

Almost surely, 2^28753874 is an apocalyptic number.

28753874 is a deficient number, since it is larger than the sum of its proper divisors (15429034).

28753874 is a wasteful number, since it uses less digits than its factorization.

28753874 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 350700.

The product of its digits is 376320, while the sum is 44.

The square root of 28753874 is about 5362.2638875758. The cubic root of 28753874 is about 306.3600429754.

The spelling of 28753874 in words is "twenty-eight million, seven hundred fifty-three thousand, eight hundred seventy-four".