97986481 has 8 divisors (see below), whose sum is σ = 99074664. Its totient is φ = 96902400.

The previous prime is 97986479. The next prime is 97986527. The reversal of 97986481 is 18468979.

It is a happy number.

It can be written as a sum of positive squares in 4 ways, for example, as 15085456 + 82901025 = 3884^2 + 9105^2 .

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

It is a cyclic number.

It is not a de Polignac number, because 97986481 - 2¹ = 97986479 is a prime.

It is a super-2 number, since 2×97986481² = 19202700917526722, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (97986881) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 78595 + ... + 79831.

It is an arithmetic number, because the mean of its divisors is an integer number (12384333).

Almost surely, 2^97986481 is an apocalyptic number.

It is an amenable number.

97986481 is a deficient number, since it is larger than the sum of its proper divisors (1088183).

97986481 is a wasteful number, since it uses less digits than its factorization.

97986481 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2051.

The product of its digits is 870912, while the sum is 52.

The square root of 97986481 is about 9898.8121004492. The cubic root of 97986481 is about 461.0224280649.

The spelling of 97986481 in words is "ninety-seven million, nine hundred eighty-six thousand, four hundred eighty-one".