117667823 has 16 divisors (see below), whose sum is σ = 148194816. Its totient is φ = 90931680.

The previous prime is 117667811. The next prime is 117667843. The reversal of 117667823 is 328766711.

It is not a de Polignac number, because 117667823 - 2¹⁰ = 117666799 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (117667843) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 11123 + ... + 18948.

It is an arithmetic number, because the mean of its divisors is an integer number (9262176).

Almost surely, 2^117667823 is an apocalyptic number.

117667823 is a gapful number since it is divisible by the number (13) formed by its first and last digit.

117667823 is a deficient number, since it is larger than the sum of its proper divisors (30526993).

117667823 is a wasteful number, since it uses less digits than its factorization.

117667823 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 30134.

The product of its digits is 84672, while the sum is 41.

The square root of 117667823 is about 10847.4800299424. The cubic root of 117667823 is about 490.0261307736.

The spelling of 117667823 in words is "one hundred seventeen million, six hundred sixty-seven thousand, eight hundred twenty-three".