27930390 has 16 divisors (see below), whose sum is σ = 67033008. Its totient is φ = 7448096.

The previous prime is 27930373. The next prime is 27930391. The reversal of 27930390 is 9303972.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (27930391) by changing a digit.

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 7 ways as a sum of consecutive naturals, for example, 465477 + ... + 465536.

It is an arithmetic number, because the mean of its divisors is an integer number (4189563).

Almost surely, 2^27930390 is an apocalyptic number.

27930390 is an abundant number, since it is smaller than the sum of its proper divisors (39102618).

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

27930390 is a wasteful number, since it uses less digits than its factorization.

27930390 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 931023.

The product of its (nonzero) digits is 10206, while the sum is 33.

The square root of 27930390 is about 5284.9210022478. The cubic root of 27930390 is about 303.4070491319.

The spelling of 27930390 in words is "twenty-seven million, nine hundred thirty thousand, three hundred ninety".