117571623 has 24 divisors (see below), whose sum is σ = 174497904. Its totient is φ = 69995520.

The previous prime is 117571613. The next prime is 117571631. The reversal of 117571623 is 326175711.

It is not a de Polignac number, because 117571623 - 2⁸ = 117571367 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (117571603) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 35911 + ... + 39047.

It is an arithmetic number, because the mean of its divisors is an integer number (7270746).

Almost surely, 2^117571623 is an apocalyptic number.

117571623 is a gapful number since it is divisible by the number (13) formed by its first and last digit.

117571623 is a deficient number, since it is larger than the sum of its proper divisors (56926281).

117571623 is a wasteful number, since it uses less digits than its factorization.

117571623 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3215 (or 3184 counting only the distinct ones).

The product of its digits is 8820, while the sum is 33.

The square root of 117571623 is about 10843.0449136762. The cubic root of 117571623 is about 489.8925531450.

The spelling of 117571623 in words is "one hundred seventeen million, five hundred seventy-one thousand, six hundred twenty-three".