97706009 has 4 divisors (see below), whose sum is σ = 97730304. Its totient is φ = 97681716.

The previous prime is 97705991. The next prime is 97706027. The reversal of 97706009 is 90060779.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is an interprime number because it is at equal distance from previous prime (97705991) and next prime (97706027).

It is a cyclic number.

It is not a de Polignac number, because 97706009 - 2⁸ = 97705753 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (97706029) 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, 4517 + ... + 14690.

It is an arithmetic number, because the mean of its divisors is an integer number (24432576).

Almost surely, 2^97706009 is an apocalyptic number.

It is an amenable number.

97706009 is a deficient number, since it is larger than the sum of its proper divisors (24295).

97706009 is a wasteful number, since it uses less digits than its factorization.

97706009 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 24294.

The product of its (nonzero) digits is 23814, while the sum is 38.

The square root of 97706009 is about 9884.6349957902. The cubic root of 97706009 is about 460.5821379049.

The spelling of 97706009 in words is "ninety-seven million, seven hundred six thousand, nine".