997706982 has 32 divisors (see below), whose sum is σ = 2115266400. Its totient is φ = 312639488.

The previous prime is 997706953. The next prime is 997706989. The reversal of 997706982 is 289607799.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (997706989) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 89494 + ... + 100022.

It is an arithmetic number, because the mean of its divisors is an integer number (66102075).

Almost surely, 2^997706982 is an apocalyptic number.

It is a pronic number, being equal to 31586×31587.

997706982 is an abundant number, since it is smaller than the sum of its proper divisors (1117559418).

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

997706982 is a wasteful number, since it uses less digits than its factorization.

997706982 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 11480.

The product of its (nonzero) digits is 3429216, while the sum is 57.

The square root of 997706982 is about 31586.4999960426. The cubic root of 997706982 is about 999.2350757067.

The spelling of 997706982 in words is "nine hundred ninety-seven million, seven hundred six thousand, nine hundred eighty-two".