9779982 has 8 divisors (see below), whose sum is σ = 19559976. Its totient is φ = 3259992.

The previous prime is 9779977. The next prime is 9779983. The reversal of 9779982 is 2899779.

It is a happy number.

9779982 is digitally balanced in base 2 and base 4, because in such bases it contains all the possibile digits an equal number of times.

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

9779982 is an admirable number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (9779983) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 814993 + ... + 815004.

It is an arithmetic number, because the mean of its divisors is an integer number (2444997).

Almost surely, 2^9779982 is an apocalyptic number.

9779982 is a primitive abundant number, since it is smaller than the sum of its proper divisors, none of which is abundant.

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

9779982 is a wasteful number, since it uses less digits than its factorization.

9779982 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1630002.

The product of its digits is 571536, while the sum is 51.

The square root of 9779982 is about 3127.2962763384. The cubic root of 9779982 is about 213.8516892434.

The spelling of 9779982 in words is "nine million, seven hundred seventy-nine thousand, nine hundred eighty-two".