84371730 has 32 divisors (see below), whose sum is σ = 209476800. Its totient is φ = 21723072.

The previous prime is 84371713. The next prime is 84371737. The reversal of 84371730 is 3717348.

It is a Curzon number.

It is a junction number, because it is equal to n+sod(n) for n = 84371691 and 84371700.

It is not an unprimeable number, because it can be changed into a prime (84371737) 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, 47620 + ... + 49359.

It is an arithmetic number, because the mean of its divisors is an integer number (6546150).

Almost surely, 2^84371730 is an apocalyptic number.

84371730 is an abundant number, since it is smaller than the sum of its proper divisors (125105070).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

84371730 is a wasteful number, since it uses less digits than its factorization.

84371730 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 97018.

The product of its (nonzero) digits is 14112, while the sum is 33.

The square root of 84371730 is about 9185.4085374577. The cubic root of 84371730 is about 438.5969945621.

The spelling of 84371730 in words is "eighty-four million, three hundred seventy-one thousand, seven hundred thirty".