97680697 has 4 divisors (see below), whose sum is σ = 97989156. Its totient is φ = 97372240.

The previous prime is 97680689. The next prime is 97680719. The reversal of 97680697 is 79608679.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 79608679 = 71 ⋅1121249.

It can be written as a sum of positive squares in 2 ways, for example, as 54331641 + 43349056 = 7371^2 + 6584^2 .

It is a cyclic number.

It is not a de Polignac number, because 97680697 - 2³ = 97680689 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (97680097) 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, 153754 + ... + 154387.

It is an arithmetic number, because the mean of its divisors is an integer number (24497289).

Almost surely, 2^97680697 is an apocalyptic number.

It is an amenable number.

97680697 is a deficient number, since it is larger than the sum of its proper divisors (308459).

97680697 is a wasteful number, since it uses less digits than its factorization.

97680697 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 308458.

The product of its (nonzero) digits is 1143072, while the sum is 52.

The square root of 97680697 is about 9883.3545418547. The cubic root of 97680697 is about 460.5423612249.

The spelling of 97680697 in words is "ninety-seven million, six hundred eighty thousand, six hundred ninety-seven".