28753475 has 6 divisors (see below), whose sum is σ = 35654340. Its totient is φ = 23002760.

The previous prime is 28753457. The next prime is 28753481. The reversal of 28753475 is 57435782.

It is not a de Polignac number, because 28753475 - 2⁶ = 28753411 is a prime.

It is an unprimeable number.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 575045 + ... + 575094.

It is an arithmetic number, because the mean of its divisors is an integer number (5942390).

Almost surely, 2^28753475 is an apocalyptic number.

28753475 is a gapful number since it is divisible by the number (25) formed by its first and last digit.

28753475 is a deficient number, since it is larger than the sum of its proper divisors (6900865).

28753475 is a wasteful number, since it uses less digits than its factorization.

28753475 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1150149 (or 1150144 counting only the distinct ones).

The product of its digits is 235200, while the sum is 41.

The square root of 28753475 is about 5362.2266830115. The cubic root of 28753475 is about 306.3586259115.

The spelling of 28753475 in words is "twenty-eight million, seven hundred fifty-three thousand, four hundred seventy-five".