97643398 has 4 divisors (see below), whose sum is σ = 146465100. Its totient is φ = 48821698.

The previous prime is 97643383. The next prime is 97643419. The reversal of 97643398 is 89334679.

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

It is a Smith number, since the sum of its digits (49) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 24410848 + ... + 24410851.

It is an arithmetic number, because the mean of its divisors is an integer number (36616275).

Almost surely, 2^97643398 is an apocalyptic number.

97643398 is a deficient number, since it is larger than the sum of its proper divisors (48821702).

97643398 is a wasteful number, since it uses less digits than its factorization.

97643398 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 48821701.

The product of its digits is 979776, while the sum is 49.

The square root of 97643398 is about 9881.4674011505. The cubic root of 97643398 is about 460.4837349834.

The spelling of 97643398 in words is "ninety-seven million, six hundred forty-three thousand, three hundred ninety-eight".