97645613 has 8 divisors (see below), whose sum is σ = 105432600. Its totient is φ = 89898048.

The previous prime is 97645609. The next prime is 97645621. The reversal of 97645613 is 31654679.

It can be written as a sum of positive squares in 4 ways, for example, as 2036329 + 95609284 = 1427^2 + 9778^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 97645613 - 2² = 97645609 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (97645633) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 4598 + ... + 14711.

It is an arithmetic number, because the mean of its divisors is an integer number (13179075).

Almost surely, 2^97645613 is an apocalyptic number.

It is an amenable number.

97645613 is a deficient number, since it is larger than the sum of its proper divisors (7786987).

97645613 is a wasteful number, since it uses less digits than its factorization.

97645613 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 19711.

The product of its digits is 136080, while the sum is 41.

The square root of 97645613 is about 9881.5794790104. The cubic root of 97645613 is about 460.4872169179.

The spelling of 97645613 in words is "ninety-seven million, six hundred forty-five thousand, six hundred thirteen".