27331961 has 8 divisors (see below), whose sum is σ = 28042080. Its totient is φ = 26625312.

The previous prime is 27331943. The next prime is 27331991. The reversal of 27331961 is 16913372.

It is a happy number.

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 27331961 - 2⁶ = 27331897 is a prime.

It is a Duffinian number.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (27331991) 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, 23645 + ... + 24773.

It is an arithmetic number, because the mean of its divisors is an integer number (3505260).

Almost surely, 2^27331961 is an apocalyptic number.

It is an amenable number.

27331961 is a deficient number, since it is larger than the sum of its proper divisors (710119).

27331961 is a wasteful number, since it uses less digits than its factorization.

27331961 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1735.

The product of its digits is 6804, while the sum is 32.

The square root of 27331961 is about 5227.9978003056. The cubic root of 27331961 is about 301.2244805434.

The spelling of 27331961 in words is "twenty-seven million, three hundred thirty-one thousand, nine hundred sixty-one".