97706609 has 16 divisors (see below), whose sum is σ = 131187840. Its totient is φ = 70277760.

The previous prime is 97706593. The next prime is 97706627. The reversal of 97706609 is 90660779.

It is not a de Polignac number, because 97706609 - 2⁴ = 97706593 is a prime.

It is a Smith number, since the sum of its digits (44) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

It is a self number, because there is not a number n which added to its sum of digits gives 97706609.

It is not an unprimeable number, because it can be changed into a prime (97706629) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 47804 + ... + 49805.

It is an arithmetic number, because the mean of its divisors is an integer number (8199240).

Almost surely, 2^97706609 is an apocalyptic number.

It is an amenable number.

97706609 is a deficient number, since it is larger than the sum of its proper divisors (33481231).

97706609 is a wasteful number, since it uses less digits than its factorization.

97706609 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 97640.

The product of its (nonzero) digits is 142884, while the sum is 44.

The square root of 97706609 is about 9884.6653458779. The cubic root of 97706609 is about 460.5830806948.

The spelling of 97706609 in words is "ninety-seven million, seven hundred six thousand, six hundred nine".