27681002 has 4 divisors (see below), whose sum is σ = 41521506. Its totient is φ = 13840500.

The previous prime is 27681001. The next prime is 27681011. The reversal of 27681002 is 20018672.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in only one way, i.e., 18139081 + 9541921 = 4259^2 + 3089^2 .

It is not an unprimeable number, because it can be changed into a prime (27681001) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 6920249 + ... + 6920252.

Almost surely, 2^27681002 is an apocalyptic number.

27681002 is a deficient number, since it is larger than the sum of its proper divisors (13840504).

27681002 is a wasteful number, since it uses less digits than its factorization.

27681002 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 13840503.

The product of its (nonzero) digits is 1344, while the sum is 26.

The square root of 27681002 is about 5261.2738001362. The cubic root of 27681002 is about 302.5013163889.

Adding to 27681002 its reverse (20018672), we get a palindrome (47699674).

The spelling of 27681002 in words is "twenty-seven million, six hundred eighty-one thousand, two".