28474403 has 8 divisors (see below), whose sum is σ = 29045760. Its totient is φ = 27906120.

The previous prime is 28474387. The next prime is 28474421. The reversal of 28474403 is 30447482.

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 28474403 - 2⁴ = 28474387 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 28474403.

It is not an unprimeable number, because it can be changed into a prime (28474003) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 28238 + ... + 29228.

It is an arithmetic number, because the mean of its divisors is an integer number (3630720).

Almost surely, 2^28474403 is an apocalyptic number.

28474403 is a deficient number, since it is larger than the sum of its proper divisors (571357).

28474403 is an equidigital number, since it uses as much as digits as its factorization.

28474403 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1537.

The product of its (nonzero) digits is 21504, while the sum is 32.

The square root of 28474403 is about 5336.1412087762. The cubic root of 28474403 is about 305.3642624490.

The spelling of 28474403 in words is "twenty-eight million, four hundred seventy-four thousand, four hundred three".