27147069 has 10 divisors (see below), whose sum is σ = 40553150. Its totient is φ = 18097992.

The previous prime is 27147031. The next prime is 27147073. The reversal of 27147069 is 96074172.

It is a happy number.

It can be written as a sum of positive squares in only one way, i.e., 15327225 + 11819844 = 3915^2 + 3438^2 .

It is not a de Polignac number, because 27147069 - 2¹¹ = 27145021 is a prime.

It is a super-2 number, since 2×27147069² = 1473926710581522, which contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (27147269) by changing a digit.

It is a polite number, since it can be written in 9 ways as a sum of consecutive naturals, for example, 167494 + ... + 167655.

It is an arithmetic number, because the mean of its divisors is an integer number (4055315).

Almost surely, 2^27147069 is an apocalyptic number.

It is an amenable number.

27147069 is a deficient number, since it is larger than the sum of its proper divisors (13406081).

27147069 is an equidigital number, since it uses as much as digits as its factorization.

27147069 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 335161 (or 335152 counting only the distinct ones).

The product of its (nonzero) digits is 21168, while the sum is 36.

The square root of 27147069 is about 5210.2849250305. The cubic root of 27147069 is about 300.5437139883.

The spelling of 27147069 in words is "twenty-seven million, one hundred forty-seven thousand, sixty-nine".