97817938 has 8 divisors (see below), whose sum is σ = 146779632. Its totient is φ = 48891396.

The previous prime is 97817921. The next prime is 97817939. The reversal of 97817938 is 83971879.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not an unprimeable number, because it can be changed into a prime (97817939) 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, 120 + ... + 13987.

It is an arithmetic number, because the mean of its divisors is an integer number (18347454).

Almost surely, 2^97817938 is an apocalyptic number.

97817938 is a deficient number, since it is larger than the sum of its proper divisors (48961694).

97817938 is a wasteful number, since it uses less digits than its factorization.

97817938 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 17576.

The product of its digits is 762048, while the sum is 52.

The square root of 97817938 is about 9890.2951422089. The cubic root of 97817938 is about 460.7579470338.

The spelling of 97817938 in words is "ninety-seven million, eight hundred seventeen thousand, nine hundred thirty-eight".