409327993 has 8 divisors (see below), whose sum is σ = 420353280. Its totient is φ = 398448960.

The previous prime is 409327981. The next prime is 409328021. The reversal of 409327993 is 399723904.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-409327993 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (409327913) 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, 30880 + ... + 42097.

It is an arithmetic number, because the mean of its divisors is an integer number (52544160).

Almost surely, 2^409327993 is an apocalyptic number.

It is an amenable number.

409327993 is a deficient number, since it is larger than the sum of its proper divisors (11025287).

409327993 is an equidigital number, since it uses as much as digits as its factorization.

409327993 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 73127.

The product of its (nonzero) digits is 367416, while the sum is 46.

The square root of 409327993 is about 20231.8558960863. The cubic root of 409327993 is about 742.4897831393.

The spelling of 409327993 in words is "four hundred nine million, three hundred twenty-seven thousand, nine hundred ninety-three".