97098661 has 4 divisors (see below), whose sum is σ = 105925824. Its totient is φ = 88271500.

The previous prime is 97098593. The next prime is 97098731. The reversal of 97098661 is 16689079.

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, and also an emirpimes, since its reverse is a distinct semiprime: 16689079 = 11 ⋅1517189.

It is a cyclic number.

It is not a de Polignac number, because 97098661 - 2¹¹ = 97096613 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 (97098361) 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, 4413565 + ... + 4413586.

It is an arithmetic number, because the mean of its divisors is an integer number (26481456).

Almost surely, 2^97098661 is an apocalyptic number.

It is an amenable number.

97098661 is a deficient number, since it is larger than the sum of its proper divisors (8827163).

97098661 is a wasteful number, since it uses less digits than its factorization.

97098661 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 8827162.

The product of its (nonzero) digits is 163296, while the sum is 46.

The square root of 97098661 is about 9853.8652822129. The cubic root of 97098661 is about 459.6258157424.

The spelling of 97098661 in words is "ninety-seven million, ninety-eight thousand, six hundred sixty-one".