327142993 has 4 divisors (see below), whose sum is σ = 327859300. Its totient is φ = 326426688.

The previous prime is 327142979. The next prime is 327142999. The reversal of 327142993 is 399241723.

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

It can be written as a sum of positive squares in 2 ways, for example, as 216325264 + 110817729 = 14708^2 + 10527^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-327142993 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (327142999) 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, 357468 + ... + 358381.

It is an arithmetic number, because the mean of its divisors is an integer number (81964825).

Almost surely, 2^327142993 is an apocalyptic number.

It is an amenable number.

327142993 is a deficient number, since it is larger than the sum of its proper divisors (716307).

327142993 is an equidigital number, since it uses as much as digits as its factorization.

327142993 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 716306.

The product of its digits is 81648, while the sum is 40.

The square root of 327142993 is about 18087.0946533709. The cubic root of 327142993 is about 689.0422846992.

It can be divided in two parts, 3271 and 42993, that added together give a palindrome (46264).

The spelling of 327142993 in words is "three hundred twenty-seven million, one hundred forty-two thousand, nine hundred ninety-three".