27863772 has 12 divisors (see below), whose sum is σ = 65015496. Its totient is φ = 9287920.

The previous prime is 27863767. The next prime is 27863777. The reversal of 27863772 is 27736872.

It is an interprime number because it is at equal distance from previous prime (27863767) and next prime (27863777).

It is a tau number, because it is divible by the number of its divisors (12).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (27863777) by changing a digit.

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 in 3 ways as a sum of consecutive naturals, for example, 1160979 + ... + 1161002.

It is an arithmetic number, because the mean of its divisors is an integer number (5417958).

Almost surely, 2^27863772 is an apocalyptic number.

It is an amenable number.

27863772 is an abundant number, since it is smaller than the sum of its proper divisors (37151724).

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

27863772 is a wasteful number, since it uses less digits than its factorization.

27863772 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2321988 (or 2321986 counting only the distinct ones).

The product of its digits is 197568, while the sum is 42.

The square root of 27863772 is about 5278.6145909699. The cubic root of 27863772 is about 303.1656339335.

The spelling of 27863772 in words is "twenty-seven million, eight hundred sixty-three thousand, seven hundred seventy-two".