84470648 has 8 divisors (see below), whose sum is σ = 158382480. Its totient is φ = 42235320.

The previous prime is 84470647. The next prime is 84470657. The reversal of 84470648 is 84607448.

It is a tau number, because it is divible by the number of its divisors (8).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (84470641) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 5279408 + ... + 5279423.

It is an arithmetic number, because the mean of its divisors is an integer number (19797810).

Almost surely, 2^84470648 is an apocalyptic number.

It is an amenable number.

84470648 is a deficient number, since it is larger than the sum of its proper divisors (73911832).

84470648 is a wasteful number, since it uses less digits than its factorization.

84470648 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 10558837 (or 10558833 counting only the distinct ones).

The product of its (nonzero) digits is 172032, while the sum is 41.

The square root of 84470648 is about 9190.7914784310. The cubic root of 84470648 is about 438.7683323374.

The spelling of 84470648 in words is "eighty-four million, four hundred seventy thousand, six hundred forty-eight".