116687321 has 2 divisors, whose sum is σ = 116687322. Its totient is φ = 116687320.

The previous prime is 116687273. The next prime is 116687393. The reversal of 116687321 is 123786611.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 98505625 + 18181696 = 9925^2 + 4264^2 .

It is a cyclic number.

It is not a de Polignac number, because 116687321 - 2¹⁴ = 116670937 is a prime.

It is equal to p_6663671 and since 116687321 and 6663671 have the same sum of digits, it is a Honaker prime.

It is not a weakly prime, because it can be changed into another prime (116687521) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 58343660 + 58343661.

It is an arithmetic number, because the mean of its divisors is an integer number (58343661).

Almost surely, 2^116687321 is an apocalyptic number.

It is an amenable number.

116687321 is a deficient number, since it is larger than the sum of its proper divisors (1).

116687321 is an equidigital number, since it uses as much as digits as its factorization.

116687321 is an evil number, because the sum of its binary digits is even.

The product of its digits is 12096, while the sum is 35.

The square root of 116687321 is about 10802.1905648808. The cubic root of 116687321 is about 488.6612366194.

The spelling of 116687321 in words is "one hundred sixteen million, six hundred eighty-seven thousand, three hundred twenty-one".