84457288 has 16 divisors (see below), whose sum is σ = 165242880. Its totient is φ = 40392528.

The previous prime is 84457283. The next prime is 84457291. The reversal of 84457288 is 88275448.

It is a happy number.

It is a Harshad number since it is a multiple of its sum of digits (46).

It is not an unprimeable number, because it can be changed into a prime (84457283) 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 3 ways as a sum of consecutive naturals, for example, 229320 + ... + 229687.

It is an arithmetic number, because the mean of its divisors is an integer number (10327680).

Almost surely, 2^84457288 is an apocalyptic number.

It is an amenable number.

84457288 is a deficient number, since it is larger than the sum of its proper divisors (80785592).

84457288 is a wasteful number, since it uses less digits than its factorization.

84457288 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 459036 (or 459032 counting only the distinct ones).

The product of its digits is 573440, while the sum is 46.

The square root of 84457288 is about 9190.0646352460. The cubic root of 84457288 is about 438.7451990395.

The spelling of 84457288 in words is "eighty-four million, four hundred fifty-seven thousand, two hundred eighty-eight".