97208663 has 4 divisors (see below), whose sum is σ = 99579648. Its totient is φ = 94837680.

The previous prime is 97208633. The next prime is 97208719. The reversal of 97208663 is 36680279.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 36680279 = 19 ⋅1930541.

It is a cyclic number.

It is not a de Polignac number, because 97208663 - 2⁸ = 97208407 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (41), and also a Moran number because the ratio is a prime number: 2370943 = 97208663 / (9 + 7 + 2 + 0 + 8 + 6 + 6 + 3).

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 97208663.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (97208633) 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, 1185431 + ... + 1185512.

It is an arithmetic number, because the mean of its divisors is an integer number (24894912).

Almost surely, 2^97208663 is an apocalyptic number.

97208663 is a deficient number, since it is larger than the sum of its proper divisors (2370985).

97208663 is a wasteful number, since it uses less digits than its factorization.

97208663 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2370984.

The product of its (nonzero) digits is 108864, while the sum is 41.

The square root of 97208663 is about 9859.4453697964. The cubic root of 97208663 is about 459.7993185748.

The spelling of 97208663 in words is "ninety-seven million, two hundred eight thousand, six hundred sixty-three".