97107681 has 8 divisors (see below), whose sum is σ = 141247584. Its totient is φ = 58853120.

The previous prime is 97107677. The next prime is 97107683. The reversal of 97107681 is 18670179.

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 97107681 - 2² = 97107677 is a prime.

It is a super-2 number, since 2×97107681² = 18859803418395522, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (97107683) 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, 1471296 + ... + 1471361.

It is an arithmetic number, because the mean of its divisors is an integer number (17655948).

Almost surely, 2^97107681 is an apocalyptic number.

It is an amenable number.

97107681 is a deficient number, since it is larger than the sum of its proper divisors (44139903).

97107681 is a wasteful number, since it uses less digits than its factorization.

97107681 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2942671.

The product of its (nonzero) digits is 21168, while the sum is 39.

The square root of 97107681 is about 9854.3229600009. The cubic root of 97107681 is about 459.6400476465.

It can be divided in two parts, 9710 and 7681, that added together give a triangular number (17391 = T₁₈₆).

The spelling of 97107681 in words is "ninety-seven million, one hundred seven thousand, six hundred eighty-one".