986121217 has 8 divisors (see below), whose sum is σ = 1015257600. Its totient is φ = 957227040.

The previous prime is 986121179. The next prime is 986121229. The reversal of 986121217 is 712121689.

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 986121217 - 2²⁷ = 851903489 is a prime.

It is a super-2 number, since 2×986121217² = 1944870109235122178, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (986121247) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 52273 + ... + 68590.

It is an arithmetic number, because the mean of its divisors is an integer number (126907200).

Almost surely, 2^986121217 is an apocalyptic number.

It is an amenable number.

986121217 is a deficient number, since it is larger than the sum of its proper divisors (29136383).

986121217 is a wasteful number, since it uses less digits than its factorization.

986121217 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 121103.

The product of its digits is 12096, while the sum is 37.

The square root of 986121217 is about 31402.5670447497. The cubic root of 986121217 is about 995.3521701456.

The spelling of 986121217 in words is "nine hundred eighty-six million, one hundred twenty-one thousand, two hundred seventeen".