27906216 has 32 divisors (see below), whose sum is σ = 75132960. Its totient is φ = 8586432.

The previous prime is 27906209. The next prime is 27906223. The reversal of 27906216 is 61260972.

It is an interprime number because it is at equal distance from previous prime (27906209) and next prime (27906223).

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 44410 + ... + 45033.

It is an arithmetic number, because the mean of its divisors is an integer number (2347905).

Almost surely, 2^27906216 is an apocalyptic number.

27906216 is a gapful number since it is divisible by the number (26) formed by its first and last digit.

It is an amenable number.

27906216 is an abundant number, since it is smaller than the sum of its proper divisors (47226744).

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

27906216 is a wasteful number, since it uses less digits than its factorization.

27906216 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 89465 (or 89461 counting only the distinct ones).

The product of its (nonzero) digits is 9072, while the sum is 33.

The square root of 27906216 is about 5282.6334341879. The cubic root of 27906216 is about 303.3194900363.

The spelling of 27906216 in words is "twenty-seven million, nine hundred six thousand, two hundred sixteen".