28517030 has 16 divisors (see below), whose sum is σ = 51861600. Its totient is φ = 11288832.

The previous prime is 28516991. The next prime is 28517039. The reversal of 28517030 is 3071582.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (28517039) 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, 13730 + ... + 15669.

It is an arithmetic number, because the mean of its divisors is an integer number (3241350).

Almost surely, 2^28517030 is an apocalyptic number.

28517030 is a deficient number, since it is larger than the sum of its proper divisors (23344570).

28517030 is a wasteful number, since it uses less digits than its factorization.

28517030 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 29503.

The product of its (nonzero) digits is 1680, while the sum is 26.

The square root of 28517030 is about 5340.1338934525. The cubic root of 28517030 is about 305.5165661668.

The spelling of 28517030 in words is "twenty-eight million, five hundred seventeen thousand, thirty".