28707950 has 12 divisors (see below), whose sum is σ = 53396880. Its totient is φ = 11483160.

The previous prime is 28707947. The next prime is 28707977. The reversal of 28707950 is 5970782.

It is a hoax number, since the sum of its digits (38) coincides with the sum of the digits of its distinct prime factors.

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 in 5 ways as a sum of consecutive naturals, for example, 287030 + ... + 287129.

It is an arithmetic number, because the mean of its divisors is an integer number (4449740).

Almost surely, 2^28707950 is an apocalyptic number.

28707950 is a deficient number, since it is larger than the sum of its proper divisors (24688930).

28707950 is a wasteful number, since it uses less digits than its factorization.

28707950 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 574171 (or 574166 counting only the distinct ones).

The product of its (nonzero) digits is 35280, while the sum is 38.

The square root of 28707950 is about 5357.9800298247. The cubic root of 28707950 is about 306.1968559734.

The spelling of 28707950 in words is "twenty-eight million, seven hundred seven thousand, nine hundred fifty".