28983902 has 4 divisors (see below), whose sum is σ = 43475856. Its totient is φ = 14491950.

The previous prime is 28983893. The next prime is 28983907. The reversal of 28983902 is 20938982.

It is a semiprime because it is the product of two primes.

It is a self number, because there is not a number n which added to its sum of digits gives 28983902.

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

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 7245974 + ... + 7245977.

It is an arithmetic number, because the mean of its divisors is an integer number (10868964).

Almost surely, 2^28983902 is an apocalyptic number.

28983902 is a deficient number, since it is larger than the sum of its proper divisors (14491954).

28983902 is a wasteful number, since it uses less digits than its factorization.

28983902 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 14491953.

The product of its (nonzero) digits is 62208, while the sum is 41.

The square root of 28983902 is about 5383.6699378769. The cubic root of 28983902 is about 307.1748235909.

The spelling of 28983902 in words is "twenty-eight million, nine hundred eighty-three thousand, nine hundred two".