84112397 has 4 divisors (see below), whose sum is σ = 84432480. Its totient is φ = 83792316.

The previous prime is 84112339. The next prime is 84112417. The reversal of 84112397 is 79321148.

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.

It is a cyclic number.

It is not a de Polignac number, because 84112397 - 2⁶ = 84112333 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 (84112307) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 159647 + ... + 160172.

It is an arithmetic number, because the mean of its divisors is an integer number (21108120).

Almost surely, 2^84112397 is an apocalyptic number.

It is an amenable number.

84112397 is a deficient number, since it is larger than the sum of its proper divisors (320083).

84112397 is a wasteful number, since it uses less digits than its factorization.

84112397 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 320082.

The product of its digits is 12096, while the sum is 35.

The square root of 84112397 is about 9171.2810991704. The cubic root of 84112397 is about 438.1471621733.

The spelling of 84112397 in words is "eighty-four million, one hundred twelve thousand, three hundred ninety-seven".