97438997 has 8 divisors (see below), whose sum is σ = 98662200. Its totient is φ = 96223680.

The previous prime is 97438993. The next prime is 97439009. The reversal of 97438997 is 79983479.

It can be written as a sum of positive squares in 4 ways, for example, as 26306641 + 71132356 = 5129^2 + 8434^2 .

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 97438997 - 2² = 97438993 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 (97438993) 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, 25163 + ... + 28775.

It is an arithmetic number, because the mean of its divisors is an integer number (12332775).

Almost surely, 2^97438997 is an apocalyptic number.

It is an amenable number.

97438997 is a deficient number, since it is larger than the sum of its proper divisors (1223203).

97438997 is a wasteful number, since it uses less digits than its factorization.

97438997 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3943.

The product of its digits is 3429216, while the sum is 56.

The square root of 97438997 is about 9871.1193387579. The cubic root of 97438997 is about 460.1621939072.

The spelling of 97438997 in words is "ninety-seven million, four hundred thirty-eight thousand, nine hundred ninety-seven".