28980502 has 4 divisors (see below), whose sum is σ = 43470756. Its totient is φ = 14490250.

The previous prime is 28980463. The next prime is 28980517. The reversal of 28980502 is 20508982.

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

It is a congruent number.

It is an unprimeable number.

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, 7245124 + ... + 7245127.

It is an arithmetic number, because the mean of its divisors is an integer number (10867689).

Almost surely, 2^28980502 is an apocalyptic number.

28980502 is a deficient number, since it is larger than the sum of its proper divisors (14490254).

28980502 is a wasteful number, since it uses less digits than its factorization.

28980502 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 14490253.

The product of its (nonzero) digits is 11520, while the sum is 34.

The square root of 28980502 is about 5383.3541588864. The cubic root of 28980502 is about 307.1628119205.

The spelling of 28980502 in words is "twenty-eight million, nine hundred eighty thousand, five hundred two".