28424903 has 8 divisors (see below), whose sum is σ = 30797088. Its totient is φ = 26079264.

The previous prime is 28424899. The next prime is 28424947. The reversal of 28424903 is 30942482.

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 28424903 - 2² = 28424899 is a prime.

It is a super-2 number, since 2×28424903² = 1615950221118818, which contains 22 as substring.

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 28424903.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (28424953) 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, 4376 + ... + 8717.

It is an arithmetic number, because the mean of its divisors is an integer number (3849636).

Almost surely, 2^28424903 is an apocalyptic number.

28424903 is a deficient number, since it is larger than the sum of its proper divisors (2372185).

28424903 is a wasteful number, since it uses less digits than its factorization.

28424903 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 13273.

The product of its (nonzero) digits is 13824, while the sum is 32.

The square root of 28424903 is about 5331.5010081590. The cubic root of 28424903 is about 305.1872110527.

The spelling of 28424903 in words is "twenty-eight million, four hundred twenty-four thousand, nine hundred three".