27129064 has 8 divisors (see below), whose sum is σ = 50867010. Its totient is φ = 13564528.

The previous prime is 27129041. The next prime is 27129071. The reversal of 27129064 is 46092172.

It can be written as a sum of positive squares in only one way, i.e., 26440164 + 688900 = 5142^2 + 830^2 .

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

It is a super-2 number, since 2×27129064² = 1471972227032192, which contains 22 as substring.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1695559 + ... + 1695574.

Almost surely, 2^27129064 is an apocalyptic number.

It is an amenable number.

27129064 is a deficient number, since it is larger than the sum of its proper divisors (23737946).

27129064 is a wasteful number, since it uses less digits than its factorization.

27129064 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3391139 (or 3391135 counting only the distinct ones).

The product of its (nonzero) digits is 6048, while the sum is 31.

The square root of 27129064 is about 5208.5568058724. The cubic root of 27129064 is about 300.4772551705.

The spelling of 27129064 in words is "twenty-seven million, one hundred twenty-nine thousand, sixty-four".