27957343 has 4 divisors (see below), whose sum is σ = 28037800. Its totient is φ = 27876888.

The previous prime is 27957331. The next prime is 27957373. The reversal of 27957343 is 34375972.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 27957343 - 2¹³ = 27949151 is a prime.

It is a super-2 number, since 2×27957343² = 1563226055239298, which contains 22 as substring.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 27957296 and 27957305.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (27957313) 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, 39705 + ... + 40402.

It is an arithmetic number, because the mean of its divisors is an integer number (7009450).

Almost surely, 2^27957343 is an apocalyptic number.

27957343 is a deficient number, since it is larger than the sum of its proper divisors (80457).

27957343 is an equidigital number, since it uses as much as digits as its factorization.

27957343 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 80456.

The product of its digits is 158760, while the sum is 40.

The square root of 27957343 is about 5287.4703781676. The cubic root of 27957343 is about 303.5046143179.

The spelling of 27957343 in words is "twenty-seven million, nine hundred fifty-seven thousand, three hundred forty-three".