84510828 has 18 divisors (see below), whose sum is σ = 213624684. Its totient is φ = 28170264.

The previous prime is 84510823. The next prime is 84510857. The reversal of 84510828 is 82801548.

It is a tau number, because it is divible by the number of its divisors (18).

It is a Smith number, since the sum of its digits (36) coincides with the sum of the digits of its prime factors.

It is a Harshad number since it is a multiple of its sum of digits (36), and also a Moran number because the ratio is a prime number: 2347523 = 84510828 / (8 + 4 + 5 + 1 + 0 + 8 + 2 + 8).

It is a junction number, because it is equal to n+sod(n) for n = 84510792 and 84510801.

It is not an unprimeable number, because it can be changed into a prime (84510821) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 1173726 + ... + 1173797.

It is an arithmetic number, because the mean of its divisors is an integer number (11868038).

Almost surely, 2^84510828 is an apocalyptic number.

It is an amenable number.

84510828 is an abundant number, since it is smaller than the sum of its proper divisors (129113856).

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

84510828 is a wasteful number, since it uses less digits than its factorization.

84510828 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2347533 (or 2347528 counting only the distinct ones).

The product of its (nonzero) digits is 20480, while the sum is 36.

The square root of 84510828 is about 9192.9771021144. The cubic root of 84510828 is about 438.8378906887.

The spelling of 84510828 in words is "eighty-four million, five hundred ten thousand, eight hundred twenty-eight".