982161647 has 4 divisors (see below), whose sum is σ = 1016029320. Its totient is φ = 948293976.

The previous prime is 982161611. The next prime is 982161721. The reversal of 982161647 is 746161289.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 746161289 = 31 ⋅24069719.

It is a cyclic number.

It is not a de Polignac number, because 982161647 - 2¹⁰ = 982160623 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 982161598 and 982161607.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (982163647) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 16933793 + ... + 16933850.

It is an arithmetic number, because the mean of its divisors is an integer number (254007330).

Almost surely, 2^982161647 is an apocalyptic number.

982161647 is a deficient number, since it is larger than the sum of its proper divisors (33867673).

982161647 is a wasteful number, since it uses less digits than its factorization.

982161647 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 33867672.

The product of its digits is 145152, while the sum is 44.

The square root of 982161647 is about 31339.4583073799. The cubic root of 982161647 is about 994.0181714078.

The spelling of 982161647 in words is "nine hundred eighty-two million, one hundred sixty-one thousand, six hundred forty-seven".