97871443 has 4 divisors (see below), whose sum is σ = 99718128. Its totient is φ = 96024760.

The previous prime is 97871419. The next prime is 97871453. The reversal of 97871443 is 34417879.

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

It is a cyclic number.

It is not a de Polignac number, because 97871443 - 2¹⁷ = 97740371 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 97871443.

It is not an unprimeable number, because it can be changed into a prime (97871453) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 923263 + ... + 923368.

It is an arithmetic number, because the mean of its divisors is an integer number (24929532).

Almost surely, 2^97871443 is an apocalyptic number.

97871443 is a deficient number, since it is larger than the sum of its proper divisors (1846685).

97871443 is a wasteful number, since it uses less digits than its factorization.

97871443 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1846684.

The product of its digits is 169344, while the sum is 43.

The square root of 97871443 is about 9892.9996967553. Note that the first 3 decimals coincide. The cubic root of 97871443 is about 460.8419410364.

The spelling of 97871443 in words is "ninety-seven million, eight hundred seventy-one thousand, four hundred forty-three".