97324981 has 4 divisors (see below), whose sum is σ = 104811532. Its totient is φ = 89838432.

The previous prime is 97324933. The next prime is 97324993. The reversal of 97324981 is 18942379.

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

It can be written as a sum of positive squares in 2 ways, for example, as 66422500 + 30902481 = 8150^2 + 5559^2 .

It is a cyclic number.

It is not a de Polignac number, because 97324981 - 2¹¹ = 97322933 is a prime.

It is a super-3 number, since 3×97324981³ (a number of 25 digits) contains 333 as substring. Note that it is a super-d number also for d = 2.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (97324481) 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, 3743256 + ... + 3743281.

It is an arithmetic number, because the mean of its divisors is an integer number (26202883).

Almost surely, 2^97324981 is an apocalyptic number.

It is an amenable number.

97324981 is a deficient number, since it is larger than the sum of its proper divisors (7486551).

97324981 is a wasteful number, since it uses less digits than its factorization.

97324981 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7486550.

The product of its digits is 108864, while the sum is 43.

The square root of 97324981 is about 9865.3424167638. The cubic root of 97324981 is about 459.9826411219.

The spelling of 97324981 in words is "ninety-seven million, three hundred twenty-four thousand, nine hundred eighty-one".