27722984 has 8 divisors (see below), whose sum is σ = 51980610. Its totient is φ = 13861488.

The previous prime is 27722941. The next prime is 27722987. The reversal of 27722984 is 48922772.

It can be written as a sum of positive squares in only one way, i.e., 24226084 + 3496900 = 4922^2 + 1870^2 .

It is a tau number, because it is divible by the number of its divisors (8).

It is not an unprimeable number, because it can be changed into a prime (27722987) by changing a digit.

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 as a sum of consecutive naturals, namely, 1732679 + ... + 1732694.

Almost surely, 2^27722984 is an apocalyptic number.

It is an amenable number.

27722984 is a deficient number, since it is larger than the sum of its proper divisors (24257626).

27722984 is a wasteful number, since it uses less digits than its factorization.

27722984 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3465379 (or 3465375 counting only the distinct ones).

The product of its digits is 112896, while the sum is 41.

The square root of 27722984 is about 5265.2620067761. The cubic root of 27722984 is about 302.6541672556.

The spelling of 27722984 in words is "twenty-seven million, seven hundred twenty-two thousand, nine hundred eighty-four".