981676671 has 8 divisors (see below), whose sum is σ = 1321862064. Its totient is φ = 647971200.

The previous prime is 981676669. The next prime is 981676681. The reversal of 981676671 is 176676189.

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

It is not a de Polignac number, because 981676671 - 2¹ = 981676669 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (981676621) 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 7 ways as a sum of consecutive naturals, for example, 1619626 + ... + 1620231.

It is an arithmetic number, because the mean of its divisors is an integer number (165232758).

Almost surely, 2^981676671 is an apocalyptic number.

981676671 is a deficient number, since it is larger than the sum of its proper divisors (340185393).

981676671 is a wasteful number, since it uses less digits than its factorization.

981676671 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3239961.

The product of its digits is 762048, while the sum is 51.

The square root of 981676671 is about 31331.7198857643. The cubic root of 981676671 is about 993.8545342825.

The spelling of 981676671 in words is "nine hundred eighty-one million, six hundred seventy-six thousand, six hundred seventy-one".