116687221 has 8 divisors (see below), whose sum is σ = 134049344. Its totient is φ = 99498240.

The previous prime is 116687171. The next prime is 116687231. The reversal of 116687221 is 122786611.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 116687221 - 2¹³ = 116679029 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (116687231) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 41835 + ... + 44536.

It is an arithmetic number, because the mean of its divisors is an integer number (16756168).

Almost surely, 2^116687221 is an apocalyptic number.

It is an amenable number.

116687221 is a deficient number, since it is larger than the sum of its proper divisors (17362123).

116687221 is an equidigital number, since it uses as much as digits as its factorization.

116687221 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 86571.

The product of its digits is 8064, while the sum is 34.

The square root of 116687221 is about 10802.1859361890. The cubic root of 116687221 is about 488.6610970266.

The spelling of 116687221 in words is "one hundred sixteen million, six hundred eighty-seven thousand, two hundred twenty-one".