117880946 has 4 divisors (see below), whose sum is σ = 176821422. Its totient is φ = 58940472.

The previous prime is 117880933. The next prime is 117880949. The reversal of 117880946 is 649088711.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 649088711 = 157 ⋅4134323.

It can be written as a sum of positive squares in only one way, i.e., 78127921 + 39753025 = 8839^2 + 6305^2 .

It is a Curzon number.

It is a junction number, because it is equal to n+sod(n) for n = 117880897 and 117880906.

It is not an unprimeable number, because it can be changed into a prime (117880949) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 29470235 + ... + 29470238.

Almost surely, 2^117880946 is an apocalyptic number.

117880946 is a deficient number, since it is larger than the sum of its proper divisors (58940476).

117880946 is an equidigital number, since it uses as much as digits as its factorization.

117880946 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 58940475.

The product of its (nonzero) digits is 96768, while the sum is 44.

The square root of 117880946 is about 10857.2992037615. The cubic root of 117880946 is about 490.3218016644.

The spelling of 117880946 in words is "one hundred seventeen million, eight hundred eighty thousand, nine hundred forty-six".