117794645 has 4 divisors (see below), whose sum is σ = 141353580. Its totient is φ = 94235712.

The previous prime is 117794641. The next prime is 117794657. The reversal of 117794645 is 546497711.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 30316036 + 87478609 = 5506^2 + 9353^2 .

It is a cyclic number.

It is not a de Polignac number, because 117794645 - 2² = 117794641 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 117794596 and 117794605.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (117794641) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 11779460 + ... + 11779469.

It is an arithmetic number, because the mean of its divisors is an integer number (35338395).

Almost surely, 2^117794645 is an apocalyptic number.

It is an amenable number.

117794645 is a deficient number, since it is larger than the sum of its proper divisors (23558935).

117794645 is an equidigital number, since it uses as much as digits as its factorization.

117794645 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 23558934.

The product of its digits is 211680, while the sum is 44.

The square root of 117794645 is about 10853.3241451640. The cubic root of 117794645 is about 490.2021170905.

The spelling of 117794645 in words is "one hundred seventeen million, seven hundred ninety-four thousand, six hundred forty-five".