116620997 has 2 divisors, whose sum is σ = 116620998. Its totient is φ = 116620996.

The previous prime is 116620981. The next prime is 116621009. The reversal of 116620997 is 799026611.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 115971361 + 649636 = 10769^2 + 806^2 .

It is a cyclic number.

It is not a de Polignac number, because 116620997 - 2⁴ = 116620981 is a prime.

It is a Chen prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (116620297) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 58310498 + 58310499.

It is an arithmetic number, because the mean of its divisors is an integer number (58310499).

Almost surely, 2^116620997 is an apocalyptic number.

It is an amenable number.

116620997 is a deficient number, since it is larger than the sum of its proper divisors (1).

116620997 is an equidigital number, since it uses as much as digits as its factorization.

116620997 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 40824, while the sum is 41.

The square root of 116620997 is about 10799.1201956456. The cubic root of 116620997 is about 488.5686355553.

The spelling of 116620997 in words is "one hundred sixteen million, six hundred twenty thousand, nine hundred ninety-seven".