27528990 has 16 divisors (see below), whose sum is σ = 66069648. Its totient is φ = 7341056.

The previous prime is 27528983. The next prime is 27529003. The reversal of 27528990 is 9982572.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 458787 + ... + 458846.

It is an arithmetic number, because the mean of its divisors is an integer number (4129353).

Almost surely, 2^27528990 is an apocalyptic number.

27528990 is an abundant number, since it is smaller than the sum of its proper divisors (38540658).

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

27528990 is a wasteful number, since it uses less digits than its factorization.

27528990 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 917643.

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

The square root of 27528990 is about 5246.8076008179. The cubic root of 27528990 is about 301.9465645264.

The spelling of 27528990 in words is "twenty-seven million, five hundred twenty-eight thousand, nine hundred ninety".