27906916 has 6 divisors (see below), whose sum is σ = 48837110. Its totient is φ = 13953456.

The previous prime is 27906899. The next prime is 27906947. The reversal of 27906916 is 61960972.

It can be written as a sum of positive squares in only one way, i.e., 22524516 + 5382400 = 4746^2 + 2320^2 .

It is an unprimeable number.

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 as a sum of consecutive naturals, namely, 3488361 + ... + 3488368.

Almost surely, 2^27906916 is an apocalyptic number.

It is an amenable number.

27906916 is a deficient number, since it is larger than the sum of its proper divisors (20930194).

27906916 is a wasteful number, since it uses less digits than its factorization.

27906916 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6976733 (or 6976731 counting only the distinct ones).

The product of its (nonzero) digits is 40824, while the sum is 40.

The square root of 27906916 is about 5282.6996886062. The cubic root of 27906916 is about 303.3220261722.

The spelling of 27906916 in words is "twenty-seven million, nine hundred six thousand, nine hundred sixteen".