84197711 has 8 divisors (see below), whose sum is σ = 90768720. Its totient is φ = 77640192.

The previous prime is 84197677. The next prime is 84197713. The reversal of 84197711 is 11779148.

It is a happy number.

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

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-84197711 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 (84197713) 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 7 ways as a sum of consecutive naturals, for example, 12335 + ... + 17903.

It is an arithmetic number, because the mean of its divisors is an integer number (11346090).

Almost surely, 2^84197711 is an apocalyptic number.

84197711 is a deficient number, since it is larger than the sum of its proper divisors (6571009).

84197711 is a wasteful number, since it uses less digits than its factorization.

84197711 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6745.

The product of its digits is 14112, while the sum is 38.

The square root of 84197711 is about 9175.9310699242. The cubic root of 84197711 is about 438.2952475820.

The spelling of 84197711 in words is "eighty-four million, one hundred ninety-seven thousand, seven hundred eleven".