28983903 has 8 divisors (see below), whose sum is σ = 41617968. Its totient is φ = 17836224.

The previous prime is 28983893. The next prime is 28983907. The reversal of 28983903 is 30938982.

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

It is not a de Polignac number, because 28983903 - 2⁹ = 28983391 is a prime.

It is a super-2 number, since 2×28983903² = 1680133266226818, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (28983907) 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, 371550 + ... + 371627.

It is an arithmetic number, because the mean of its divisors is an integer number (5202246).

Almost surely, 2^28983903 is an apocalyptic number.

28983903 is a deficient number, since it is larger than the sum of its proper divisors (12634065).

28983903 is a wasteful number, since it uses less digits than its factorization.

28983903 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 743193.

The product of its (nonzero) digits is 93312, while the sum is 42.

The square root of 28983903 is about 5383.6700307504. The cubic root of 28983903 is about 307.1748271236.

The spelling of 28983903 in words is "twenty-eight million, nine hundred eighty-three thousand, nine hundred three".