27958939 has 8 divisors (see below), whose sum is σ = 28823760. Its totient is φ = 27099936.

The previous prime is 27958919. The next prime is 27958943. The reversal of 27958939 is 93985972.

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 27958939 - 2⁵ = 27958907 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (27958919) 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, 9552 + ... + 12130.

It is an arithmetic number, because the mean of its divisors is an integer number (3602970).

Almost surely, 2^27958939 is an apocalyptic number.

27958939 is a deficient number, since it is larger than the sum of its proper divisors (864821).

27958939 is a wasteful number, since it uses less digits than its factorization.

27958939 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2909.

The product of its digits is 1224720, while the sum is 52.

The square root of 27958939 is about 5287.6212988451. The cubic root of 27958939 is about 303.5103895943.

The spelling of 27958939 in words is "twenty-seven million, nine hundred fifty-eight thousand, nine hundred thirty-nine".