97984081 has 4 divisors (see below), whose sum is σ = 105521332. Its totient is φ = 90446832.

The previous prime is 97984067. The next prime is 97984091. The reversal of 97984081 is 18048979.

It is a happy number.

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 9247681 + 88736400 = 3041^2 + 9420^2 .

It is a cyclic number.

It is not a de Polignac number, because 97984081 - 2¹⁵ = 97951313 is a prime.

It is a super-2 number, since 2×97984081² = 19201760258829122, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (97984001) 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, 3768606 + ... + 3768631.

It is an arithmetic number, because the mean of its divisors is an integer number (26380333).

Almost surely, 2^97984081 is an apocalyptic number.

It is an amenable number.

97984081 is a deficient number, since it is larger than the sum of its proper divisors (7537251).

97984081 is a wasteful number, since it uses less digits than its factorization.

97984081 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7537250.

The product of its (nonzero) digits is 145152, while the sum is 46.

The square root of 97984081 is about 9898.6908730397. The cubic root of 97984081 is about 461.0186640665.

The spelling of 97984081 in words is "ninety-seven million, nine hundred eighty-four thousand, eighty-one".