97646681 has 8 divisors (see below), whose sum is σ = 112130400. Its totient is φ = 84097440.

The previous prime is 97646677. The next prime is 97646687. The reversal of 97646681 is 18664679.

It is a happy number.

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 97646681 - 2² = 97646677 is a prime.

It is a super-2 number, since 2×97646681² = 19069748620631522, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (97646687) 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, 233396 + ... + 233813.

It is an arithmetic number, because the mean of its divisors is an integer number (14016300).

Almost surely, 2^97646681 is an apocalyptic number.

It is an amenable number.

97646681 is a deficient number, since it is larger than the sum of its proper divisors (14483719).

97646681 is a wasteful number, since it uses less digits than its factorization.

97646681 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 467239.

The product of its digits is 435456, while the sum is 47.

The square root of 97646681 is about 9881.6335188065. The cubic root of 97646681 is about 460.4888957732.

The spelling of 97646681 in words is "ninety-seven million, six hundred forty-six thousand, six hundred eighty-one".