27072369 has 6 divisors (see below), whose sum is σ = 39104546. Its totient is φ = 18048240.

The previous prime is 27072319. The next prime is 27072373. The reversal of 27072369 is 96327072.

It can be written as a sum of positive squares in only one way, i.e., 19847025 + 7225344 = 4455^2 + 2688^2 .

It is not a de Polignac number, because 27072369 - 2⁹ = 27071857 is a prime.

It is a super-2 number, since 2×27072369² = 1465826326544322, which contains 22 as substring.

It is an alternating number because its digits alternate between even and odd.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (27072319) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 1504012 + ... + 1504029.

Almost surely, 2^27072369 is an apocalyptic number.

It is an amenable number.

27072369 is a deficient number, since it is larger than the sum of its proper divisors (12032177).

27072369 is a wasteful number, since it uses less digits than its factorization.

27072369 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3008047 (or 3008044 counting only the distinct ones).

The product of its (nonzero) digits is 31752, while the sum is 36.

The square root of 27072369 is about 5203.1114729554. Note that the first 3 decimals coincide. The cubic root of 27072369 is about 300.2677942164.

The spelling of 27072369 in words is "twenty-seven million, seventy-two thousand, three hundred sixty-nine".