97001663 has 4 divisors (see below), whose sum is σ = 105820008. Its totient is φ = 88183320.

The previous prime is 97001659. The next prime is 97001689. The reversal of 97001663 is 36610079.

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

It is a cyclic number.

It is not a de Polignac number, because 97001663 - 2² = 97001659 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 (97001563) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 4409156 + ... + 4409177.

It is an arithmetic number, because the mean of its divisors is an integer number (26455002).

Almost surely, 2^97001663 is an apocalyptic number.

97001663 is a deficient number, since it is larger than the sum of its proper divisors (8818345).

97001663 is a wasteful number, since it uses less digits than its factorization.

97001663 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 8818344.

The product of its (nonzero) digits is 6804, while the sum is 32.

The square root of 97001663 is about 9848.9422274679. The cubic root of 97001663 is about 459.4727149746.

It can be divided in two parts, 970016 and 63, that added together give a palindrome (970079).

The spelling of 97001663 in words is "ninety-seven million, one thousand, six hundred sixty-three".