97679693 has 4 divisors (see below), whose sum is σ = 97732668. Its totient is φ = 97626720.

The previous prime is 97679669. The next prime is 97679713. The reversal of 97679693 is 39697679.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 39697679 = 7 ⋅5671097.

It can be written as a sum of positive squares in 2 ways, for example, as 36808489 + 60871204 = 6067^2 + 7802^2 .

It is a cyclic number.

It is not a de Polignac number, because 97679693 - 2¹⁴ = 97663309 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (97679623) 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, 23618 + ... + 27443.

It is an arithmetic number, because the mean of its divisors is an integer number (24433167).

Almost surely, 2^97679693 is an apocalyptic number.

It is an amenable number.

97679693 is a deficient number, since it is larger than the sum of its proper divisors (52975).

97679693 is a wasteful number, since it uses less digits than its factorization.

97679693 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 52974.

The product of its digits is 3857868, while the sum is 56.

The square root of 97679693 is about 9883.3037492531. The cubic root of 97679693 is about 460.5407833420.

The spelling of 97679693 in words is "ninety-seven million, six hundred seventy-nine thousand, six hundred ninety-three".