27928950 has 96 divisors (see below), whose sum is σ = 80542464. Its totient is φ = 6272640.

The previous prime is 27928937. The next prime is 27928981. The reversal of 27928950 is 5982972.

It is a Harshad number since it is a multiple of its sum of digits (42).

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 47 ways as a sum of consecutive naturals, for example, 70152 + ... + 70548.

It is an arithmetic number, because the mean of its divisors is an integer number (838984).

Almost surely, 2^27928950 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 27928950, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (40271232).

27928950 is an abundant number, since it is smaller than the sum of its proper divisors (52613514).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

27928950 is a wasteful number, since it uses less digits than its factorization.

27928950 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 486 (or 481 counting only the distinct ones).

The product of its (nonzero) digits is 90720, while the sum is 42.

The square root of 27928950 is about 5284.7847638291. The cubic root of 27928950 is about 303.4018348157.

The spelling of 27928950 in words is "twenty-seven million, nine hundred twenty-eight thousand, nine hundred fifty".