84347506 has 32 divisors (see below), whose sum is σ = 138419712. Its totient is φ = 38396160.

The previous prime is 84347477. The next prime is 84347507. The reversal of 84347506 is 60574348.

It is a super-2 number, since 2×84347506² = 14229003536840072, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (84347507) 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 15 ways as a sum of consecutive naturals, for example, 138655 + ... + 139261.

It is an arithmetic number, because the mean of its divisors is an integer number (4325616).

Almost surely, 2^84347506 is an apocalyptic number.

84347506 is a deficient number, since it is larger than the sum of its proper divisors (54072206).

84347506 is a wasteful number, since it uses less digits than its factorization.

84347506 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 754.

The product of its (nonzero) digits is 80640, while the sum is 37.

The square root of 84347506 is about 9184.0898297001. The cubic root of 84347506 is about 438.5550152935. Note that the first 3 decimals are identical.

The spelling of 84347506 in words is "eighty-four million, three hundred forty-seven thousand, five hundred six".