117577321 has 4 divisors (see below), whose sum is σ = 124493652. Its totient is φ = 110660992.

The previous prime is 117577307. The next prime is 117577333. The reversal of 117577321 is 123775711.

It is a happy number.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 123775711 = 10331 ⋅11981.

It can be written as a sum of positive squares in 2 ways, for example, as 71825625 + 45751696 = 8475^2 + 6764^2 .

It is a cyclic number.

It is not a de Polignac number, because 117577321 - 2¹⁷ = 117446249 is a prime.

It is not an unprimeable number, because it can be changed into a prime (117577391) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 3458140 + ... + 3458173.

It is an arithmetic number, because the mean of its divisors is an integer number (31123413).

Almost surely, 2^117577321 is an apocalyptic number.

It is an amenable number.

117577321 is a deficient number, since it is larger than the sum of its proper divisors (6916331).

117577321 is an equidigital number, since it uses as much as digits as its factorization.

117577321 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6916330.

The product of its digits is 10290, while the sum is 34.

The square root of 117577321 is about 10843.3076595659. The cubic root of 117577321 is about 489.9004670804.

The spelling of 117577321 in words is "one hundred seventeen million, five hundred seventy-seven thousand, three hundred twenty-one".