27882772 has 6 divisors (see below), whose sum is σ = 48794858. Its totient is φ = 13941384.

The previous prime is 27882763. The next prime is 27882773. The reversal of 27882772 is 27728872.

It can be written as a sum of positive squares in only one way, i.e., 15023376 + 12859396 = 3876^2 + 3586^2 .

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (27882773) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 3485343 + ... + 3485350.

Almost surely, 2^27882772 is an apocalyptic number.

27882772 is the 2823-rd centered heptagonal number.

It is an amenable number.

27882772 is a deficient number, since it is larger than the sum of its proper divisors (20912086).

27882772 is a wasteful number, since it uses less digits than its factorization.

27882772 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6970697 (or 6970695 counting only the distinct ones).

The product of its digits is 175616, while the sum is 43.

The square root of 27882772 is about 5280.4139989209. The cubic root of 27882772 is about 303.2345267151.

The spelling of 27882772 in words is "twenty-seven million, eight hundred eighty-two thousand, seven hundred seventy-two".