97897398 has 16 divisors (see below), whose sum is σ = 195926016. Its totient is φ = 32610600.

The previous prime is 97897391. The next prime is 97897447. The reversal of 97897398 is 89379879.

It is a happy number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (97897391) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 6123 + ... + 15273.

It is an arithmetic number, because the mean of its divisors is an integer number (12245376).

Almost surely, 2^97897398 is an apocalyptic number.

97897398 is an abundant number, since it is smaller than the sum of its proper divisors (98028618).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

97897398 is a wasteful number, since it uses less digits than its factorization.

97897398 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 10939.

The product of its digits is 6858432, while the sum is 60.

The square root of 97897398 is about 9894.3113959487. The cubic root of 97897398 is about 460.8826750681.

The spelling of 97897398 in words is "ninety-seven million, eight hundred ninety-seven thousand, three hundred ninety-eight".