84700000 has 216 divisors, whose sum is σ = 261826992. Its totient is φ = 26400000.

The previous prime is 84699997. The next prime is 84700003. The reversal of 84700000 is 748.

It is a happy number.

It is an interprime number because it is at equal distance from previous prime (84699997) and next prime (84700003).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (84700003) 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 35 ways as a sum of consecutive naturals, for example, 7699995 + ... + 7700005.

It is an arithmetic number, because the mean of its divisors is an integer number (1212162).

Almost surely, 2^84700000 is an apocalyptic number.

84700000 is a gapful number since it is divisible by the number (80) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 84700000, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (130913496).

84700000 is an abundant number, since it is smaller than the sum of its proper divisors (177126992).

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

84700000 is an equidigital number, since it uses as much as digits as its factorization.

84700000 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 64 (or 25 counting only the distinct ones).

The product of its (nonzero) digits is 224, while the sum is 19.

The square root of 84700000 is about 9203.2602918748. The cubic root of 84700000 is about 439.1650833829.

Adding to 84700000 its reverse (748), we get a palindrome (84700748).

The spelling of 84700000 in words is "eighty-four million, seven hundred thousand".