27772016 has 20 divisors (see below), whose sum is σ = 56974032. Its totient is φ = 13069056.

The previous prime is 27772013. The next prime is 27772027. The reversal of 27772016 is 61027772.

It is a happy number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (27772013) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 50780 + ... + 51323.

Almost surely, 2^27772016 is an apocalyptic number.

It is an amenable number.

27772016 is an abundant number, since it is smaller than the sum of its proper divisors (29202016).

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

27772016 is a wasteful number, since it uses less digits than its factorization.

27772016 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 102128 (or 102122 counting only the distinct ones).

The product of its (nonzero) digits is 8232, while the sum is 32.

The square root of 27772016 is about 5269.9161283649. The cubic root of 27772016 is about 302.8324910006.

Adding to 27772016 its reverse (61027772), we get a palindrome (88799788).

The spelling of 27772016 in words is "twenty-seven million, seven hundred seventy-two thousand, sixteen".