27916990 has 8 divisors (see below), whose sum is σ = 50250600. Its totient is φ = 11166792.

The previous prime is 27916979. The next prime is 27917033. The reversal of 27916990 is 9961972.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1395840 + ... + 1395859.

It is an arithmetic number, because the mean of its divisors is an integer number (6281325).

Almost surely, 2^27916990 is an apocalyptic number.

27916990 is a deficient number, since it is larger than the sum of its proper divisors (22333610).

27916990 is a wasteful number, since it uses less digits than its factorization.

27916990 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2791706.

The product of its (nonzero) digits is 61236, while the sum is 43.

The square root of 27916990 is about 5283.6530923216. The cubic root of 27916990 is about 303.3585200946.

The spelling of 27916990 in words is "twenty-seven million, nine hundred sixteen thousand, nine hundred ninety".