27661233 has 8 divisors (see below), whose sum is σ = 37387168. Its totient is φ = 18188064.

The previous prime is 27661229. The next prime is 27661247. The reversal of 27661233 is 33216672.

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

It is not a de Polignac number, because 27661233 - 2² = 27661229 is a prime.

It is a super-2 number, since 2×27661233² = 1530287622160578, which contains 22 as substring.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 27661233.

It is not an unprimeable number, because it can be changed into a prime (27661033) 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, 62935 + ... + 63372.

It is an arithmetic number, because the mean of its divisors is an integer number (4673396).

Almost surely, 2^27661233 is an apocalyptic number.

It is an amenable number.

27661233 is a deficient number, since it is larger than the sum of its proper divisors (9725935).

27661233 is a wasteful number, since it uses less digits than its factorization.

27661233 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 126383.

The product of its digits is 9072, while the sum is 30.

The square root of 27661233 is about 5259.3947370396. The cubic root of 27661233 is about 302.4292865697.

The spelling of 27661233 in words is "twenty-seven million, six hundred sixty-one thousand, two hundred thirty-three".