97675609 has 4 divisors (see below), whose sum is σ = 98331300. Its totient is φ = 97019920.

The previous prime is 97675607. The next prime is 97675619. The reversal of 97675609 is 90657679.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 29975625 + 67699984 = 5475^2 + 8228^2 .

It is a cyclic number.

It is not a de Polignac number, because 97675609 - 2¹ = 97675607 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (97675601) 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, 327622 + ... + 327919.

It is an arithmetic number, because the mean of its divisors is an integer number (24582825).

Almost surely, 2^97675609 is an apocalyptic number.

It is an amenable number.

97675609 is a deficient number, since it is larger than the sum of its proper divisors (655691).

97675609 is a wasteful number, since it uses less digits than its factorization.

97675609 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 655690.

The product of its (nonzero) digits is 714420, while the sum is 49.

The square root of 97675609 is about 9883.0971360197. The cubic root of 97675609 is about 460.5343648303.

It can be divided in two parts, 9767 and 5609, that added together give a square (15376 = 124²).

The spelling of 97675609 in words is "ninety-seven million, six hundred seventy-five thousand, six hundred nine".