97982 has 4 divisors (see below), whose sum is σ = 146976. Its totient is φ = 48990.

The previous prime is 97973. The next prime is 97987. The reversal of 97982 is 28979.

It is a semiprime because it is the product of two primes.

It is a nialpdrome in base 7.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (97987) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 24494 + ... + 24497.

It is an arithmetic number, because the mean of its divisors is an integer number (36744).

2⁹⁷⁹⁸² is an apocalyptic number.

97982 is a deficient number, since it is larger than the sum of its proper divisors (48994).

97982 is a wasteful number, since it uses less digits than its factorization.

97982 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 48993.

The product of its digits is 9072, while the sum is 35.

The square root of 97982 is about 313.0207660843. The cubic root of 97982 is about 46.1015400317.

The spelling of 97982 in words is "ninety-seven thousand, nine hundred eighty-two".