28932475 has 24 divisors (see below), whose sum is σ = 42153552. Its totient is φ = 19420800.

The previous prime is 28932473. The next prime is 28932493. The reversal of 28932475 is 57423982.

It is not a de Polignac number, because 28932475 - 2¹ = 28932473 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (28932473) by changing a digit.

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 23 ways as a sum of consecutive naturals, for example, 472 + ... + 7621.

It is an arithmetic number, because the mean of its divisors is an integer number (1756398).

Almost surely, 2^28932475 is an apocalyptic number.

28932475 is a gapful number since it is divisible by the number (25) formed by its first and last digit.

28932475 is a deficient number, since it is larger than the sum of its proper divisors (13221077).

28932475 is a wasteful number, since it uses less digits than its factorization.

28932475 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 8127 (or 8122 counting only the distinct ones).

The product of its digits is 120960, while the sum is 40.

The square root of 28932475 is about 5378.8916144500. The cubic root of 28932475 is about 306.9930395561.

The spelling of 28932475 in words is "twenty-eight million, nine hundred thirty-two thousand, four hundred seventy-five".