117578321 has 8 divisors (see below), whose sum is σ = 134447040. Its totient is φ = 100727568.

The previous prime is 117578303. The next prime is 117578339. The reversal of 117578321 is 123875711.

It is a happy number.

It is an interprime number because it is at equal distance from previous prime (117578303) and next prime (117578339).

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 117578321 - 2¹⁴ = 117561937 is a prime.

It is not an unprimeable number, because it can be changed into a prime (117572321) 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, 15455 + ... + 21771.

It is an arithmetic number, because the mean of its divisors is an integer number (16805880).

Almost surely, 2^117578321 is an apocalyptic number.

It is an amenable number.

117578321 is a deficient number, since it is larger than the sum of its proper divisors (16868719).

117578321 is an equidigital number, since it uses as much as digits as its factorization.

117578321 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 8983.

The product of its digits is 11760, while the sum is 35.

The square root of 117578321 is about 10843.3537708589. The cubic root of 117578321 is about 489.9018559510.

The spelling of 117578321 in words is "one hundred seventeen million, five hundred seventy-eight thousand, three hundred twenty-one".