117321447 has 16 divisors (see below), whose sum is σ = 168168960. Its totient is φ = 72519552.

The previous prime is 117321431. The next prime is 117321461. The reversal of 117321447 is 744123711.

It is not a de Polignac number, because 117321447 - 2⁴ = 117321431 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (117321427) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 19218 + ... + 24575.

It is an arithmetic number, because the mean of its divisors is an integer number (10510560).

Almost surely, 2^117321447 is an apocalyptic number.

117321447 is a deficient number, since it is larger than the sum of its proper divisors (50847513).

117321447 is a wasteful number, since it uses less digits than its factorization.

117321447 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 43862.

The product of its digits is 4704, while the sum is 30.

The square root of 117321447 is about 10831.5025273505. The cubic root of 117321447 is about 489.5448320740.

The spelling of 117321447 in words is "one hundred seventeen million, three hundred twenty-one thousand, four hundred forty-seven".