117820007 has 16 divisors (see below), whose sum is σ = 131880960. Its totient is φ = 104730912.

The previous prime is 117819973. The next prime is 117820009. The reversal of 117820007 is 700028711.

It is a cyclic number.

It is not a de Polignac number, because 117820007 - 2⁶ = 117819943 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (117820009) 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, 20618 + ... + 25704.

It is an arithmetic number, because the mean of its divisors is an integer number (8242560).

Almost surely, 2^117820007 is an apocalyptic number.

117820007 is a deficient number, since it is larger than the sum of its proper divisors (14060953).

117820007 is a wasteful number, since it uses less digits than its factorization.

117820007 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5182.

The product of its (nonzero) digits is 784, while the sum is 26.

The square root of 117820007 is about 10854.4924800748. The cubic root of 117820007 is about 490.2372958655.

Adding to 117820007 its reverse (700028711), we get a palindrome (817848718).

The spelling of 117820007 in words is "one hundred seventeen million, eight hundred twenty thousand, seven".