97843189 has 4 divisors (see below), whose sum is σ = 100118656. Its totient is φ = 95567724.

The previous prime is 97843169. The next prime is 97843199. The reversal of 97843189 is 98134879.

It is a happy number.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4, and also an emirpimes, since its reverse is a distinct semiprime: 98134879 = 6271 ⋅15649.

It is a cyclic number.

It is not a de Polignac number, because 97843189 - 2⁵ = 97843157 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 (97843169) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1137669 + ... + 1137754.

It is an arithmetic number, because the mean of its divisors is an integer number (25029664).

Almost surely, 2^97843189 is an apocalyptic number.

It is an amenable number.

97843189 is a deficient number, since it is larger than the sum of its proper divisors (2275467).

97843189 is a wasteful number, since it uses less digits than its factorization.

97843189 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2275466.

The product of its digits is 435456, while the sum is 49.

The square root of 97843189 is about 9891.5716142583. The cubic root of 97843189 is about 460.7975907439.

The spelling of 97843189 in words is "ninety-seven million, eight hundred forty-three thousand, one hundred eighty-nine".