117969923 has 2 divisors, whose sum is σ = 117969924. Its totient is φ = 117969922.

The previous prime is 117969893. The next prime is 117969947. The reversal of 117969923 is 329969711.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 117969923 - 2⁸ = 117969667 is a prime.

It is not a weakly prime, because it can be changed into another prime (117969223) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 58984961 + 58984962.

It is an arithmetic number, because the mean of its divisors is an integer number (58984962).

Almost surely, 2^117969923 is an apocalyptic number.

117969923 is a deficient number, since it is larger than the sum of its proper divisors (1).

117969923 is an equidigital number, since it uses as much as digits as its factorization.

117969923 is an evil number, because the sum of its binary digits is even.

The product of its digits is 183708, while the sum is 47.

The square root of 117969923 is about 10861.3959968321. The cubic root of 117969923 is about 490.4451362443.

The spelling of 117969923 in words is "one hundred seventeen million, nine hundred sixty-nine thousand, nine hundred twenty-three".