27945941 has 4 divisors (see below), whose sum is σ = 29416800. Its totient is φ = 26475084.

The previous prime is 27945877. The next prime is 27945959. The reversal of 27945941 is 14954972.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 27945941 - 2⁶ = 27945877 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (27945961) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 735401 + ... + 735438.

It is an arithmetic number, because the mean of its divisors is an integer number (7354200).

Almost surely, 2^27945941 is an apocalyptic number.

It is an amenable number.

27945941 is a deficient number, since it is larger than the sum of its proper divisors (1470859).

27945941 is a wasteful number, since it uses less digits than its factorization.

27945941 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1470858.

The product of its digits is 90720, while the sum is 41.

The square root of 27945941 is about 5286.3920588621. The cubic root of 27945941 is about 303.4633487112.

The spelling of 27945941 in words is "twenty-seven million, nine hundred forty-five thousand, nine hundred forty-one".