27964169 has 8 divisors (see below), whose sum is σ = 28513800. Its totient is φ = 27417600.

The previous prime is 27964151. The next prime is 27964199. The reversal of 27964169 is 96146972.

It can be written as a sum of positive squares in 4 ways, for example, as 976144 + 26988025 = 988^2 + 5195^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-27964169 is a prime.

It is a super-2 number, since 2×27964169² = 1563989495721122, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (27964109) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 26879 + ... + 27899.

It is an arithmetic number, because the mean of its divisors is an integer number (3564225).

Almost surely, 2^27964169 is an apocalyptic number.

It is an amenable number.

27964169 is a deficient number, since it is larger than the sum of its proper divisors (549631).

27964169 is a wasteful number, since it uses less digits than its factorization.

27964169 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1531.

The product of its digits is 163296, while the sum is 44.

The square root of 27964169 is about 5288.1158270219. The cubic root of 27964169 is about 303.5293133020.

The spelling of 27964169 in words is "twenty-seven million, nine hundred sixty-four thousand, one hundred sixty-nine".