27874890 has 96 divisors (see below), whose sum is σ = 76317696. Its totient is φ = 7050240.

The previous prime is 27874877. The next prime is 27874907. The reversal of 27874890 is 9847872.

It is a Harshad number since it is a multiple of its sum of digits (45).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 270579 + ... + 270681.

It is an arithmetic number, because the mean of its divisors is an integer number (794976).

Almost surely, 2^27874890 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 27874890, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (38158848).

27874890 is an abundant number, since it is smaller than the sum of its proper divisors (48442806).

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

27874890 is a wasteful number, since it uses less digits than its factorization.

27874890 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 244 (or 241 counting only the distinct ones).

The product of its (nonzero) digits is 225792, while the sum is 45.

The square root of 27874890 is about 5279.6676031735. The cubic root of 27874890 is about 303.2059508884.

The spelling of 27874890 in words is "twenty-seven million, eight hundred seventy-four thousand, eight hundred ninety".