84801270 has 48 divisors (see below), whose sum is σ = 216221328. Its totient is φ = 21281280.

The previous prime is 84801251. The next prime is 84801271. The reversal of 84801270 is 7210848.

It is a super-2 number, since 2×84801270² = 14382510787225800, which contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (30).

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (84801271) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 3780 + ... + 13560.

It is an arithmetic number, because the mean of its divisors is an integer number (4504611).

Almost surely, 2^84801270 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 84801270, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (108110664).

84801270 is an abundant number, since it is smaller than the sum of its proper divisors (131420058).

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

84801270 is a wasteful number, since it uses less digits than its factorization.

84801270 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 9825 (or 9808 counting only the distinct ones).

The product of its (nonzero) digits is 3584, while the sum is 30.

The square root of 84801270 is about 9208.7605029124. The cubic root of 84801270 is about 439.3400402299.

The spelling of 84801270 in words is "eighty-four million, eight hundred one thousand, two hundred seventy".