28995950 has 24 divisors (see below), whose sum is σ = 54096240. Its totient is φ = 11563200.

The previous prime is 28995949. The next prime is 28995959. The reversal of 28995950 is 5959982.

It is a junction number, because it is equal to n+sod(n) for n = 28995895 and 28995904.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (28995959) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 21290 + ... + 22610.

It is an arithmetic number, because the mean of its divisors is an integer number (2254010).

Almost surely, 2^28995950 is an apocalyptic number.

28995950 is a deficient number, since it is larger than the sum of its proper divisors (25100290).

28995950 is a wasteful number, since it uses less digits than its factorization.

28995950 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1772 (or 1767 counting only the distinct ones).

The product of its (nonzero) digits is 291600, while the sum is 47.

The square root of 28995950 is about 5384.7887609450. The cubic root of 28995950 is about 307.2173797382.

The spelling of 28995950 in words is "twenty-eight million, nine hundred ninety-five thousand, nine hundred fifty".