9877982 has 8 divisors (see below), whose sum is σ = 14865552. Its totient is φ = 4922800.

The previous prime is 9877961. The next prime is 9877997. The reversal of 9877982 is 2897789.

It is a happy number.

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

It is a self number, because there is not a number n which added to its sum of digits gives 9877982.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 7319 + ... + 8562.

It is an arithmetic number, because the mean of its divisors is an integer number (1858194).

Almost surely, 2^9877982 is an apocalyptic number.

9877982 is a deficient number, since it is larger than the sum of its proper divisors (4987570).

9877982 is a wasteful number, since it uses less digits than its factorization.

9877982 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 16194.

The product of its digits is 508032, while the sum is 50.

The square root of 9877982 is about 3142.9257070443. The cubic root of 9877982 is about 214.5636145976.

The spelling of 9877982 in words is "nine million, eight hundred seventy-seven thousand, nine hundred eighty-two".