27213953 has 8 divisors (see below), whose sum is σ = 29386728. Its totient is φ = 25052544.

The previous prime is 27213943. The next prime is 27213959. The reversal of 27213953 is 35931272.

It can be written as a sum of positive squares in 4 ways, for example, as 2093809 + 25120144 = 1447^2 + 5012^2 .

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

It is a cyclic number.

It is not a de Polignac number, because 27213953 - 2⁴ = 27213937 is a prime.

It is a super-3 number, since 3×27213953³ (a number of 23 digits) contains 333 as substring.

It is a Duffinian number.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (27213959) 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, 2525 + ... + 7797.

It is an arithmetic number, because the mean of its divisors is an integer number (3673341).

Almost surely, 2^27213953 is an apocalyptic number.

It is an amenable number.

27213953 is a deficient number, since it is larger than the sum of its proper divisors (2172775).

27213953 is a wasteful number, since it uses less digits than its factorization.

27213953 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5683.

The product of its digits is 11340, while the sum is 32.

The square root of 27213953 is about 5216.6994354668. The cubic root of 27213953 is about 300.7903345942.

The spelling of 27213953 in words is "twenty-seven million, two hundred thirteen thousand, nine hundred fifty-three".