117972326 has 4 divisors (see below), whose sum is σ = 176958492. Its totient is φ = 58986162.

The previous prime is 117972301. The next prime is 117972347. The reversal of 117972326 is 623279711.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 623279711 = 43 ⋅14494877.

It is a self number, because there is not a number n which added to its sum of digits gives 117972326.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 29493080 + ... + 29493083.

It is an arithmetic number, because the mean of its divisors is an integer number (44239623).

Almost surely, 2^117972326 is an apocalyptic number.

117972326 is a deficient number, since it is larger than the sum of its proper divisors (58986166).

117972326 is an equidigital number, since it uses as much as digits as its factorization.

117972326 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 58986165.

The product of its digits is 31752, while the sum is 38.

The square root of 117972326 is about 10861.5066174081. The cubic root of 117972326 is about 490.4484662786.

The spelling of 117972326 in words is "one hundred seventeen million, nine hundred seventy-two thousand, three hundred twenty-six".