117197077 has 2 divisors, whose sum is σ = 117197078. Its totient is φ = 117197076.

The previous prime is 117197063. The next prime is 117197083. The reversal of 117197077 is 770791711.

It is a happy number.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 86881041 + 30316036 = 9321^2 + 5506^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-117197077 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (117197177) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 58598538 + 58598539.

It is an arithmetic number, because the mean of its divisors is an integer number (58598539).

Almost surely, 2^117197077 is an apocalyptic number.

It is an amenable number.

117197077 is a deficient number, since it is larger than the sum of its proper divisors (1).

117197077 is an equidigital number, since it uses as much as digits as its factorization.

117197077 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 21609, while the sum is 40.

The square root of 117197077 is about 10825.7598809506. The cubic root of 117197077 is about 489.3717855163.

The spelling of 117197077 in words is "one hundred seventeen million, one hundred ninety-seven thousand, seventy-seven".