84047470 has 16 divisors (see below), whose sum is σ = 162923040. Its totient is φ = 31032864.

The previous prime is 84047459. The next prime is 84047471. The reversal of 84047470 is 7474048.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (84047471) 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 in 7 ways as a sum of consecutive naturals, for example, 323130 + ... + 323389.

It is an arithmetic number, because the mean of its divisors is an integer number (10182690).

Almost surely, 2^84047470 is an apocalyptic number.

84047470 is a deficient number, since it is larger than the sum of its proper divisors (78875570).

84047470 is a wasteful number, since it uses less digits than its factorization.

84047470 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 646539.

The product of its (nonzero) digits is 25088, while the sum is 34.

The square root of 84047470 is about 9167.7407249551. The cubic root of 84047470 is about 438.0343967761.

The spelling of 84047470 in words is "eighty-four million, forty-seven thousand, four hundred seventy".