84289530 has 32 divisors (see below), whose sum is σ = 217857024. Its totient is φ = 20748096.

The previous prime is 84289501. The next prime is 84289531. The reversal of 84289530 is 3598248.

It is a happy number.

It is a Harshad number since it is a multiple of its sum of digits (39).

It is not an unprimeable number, because it can be changed into a prime (84289531) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 107674 + ... + 108453.

It is an arithmetic number, because the mean of its divisors is an integer number (6808032).

Almost surely, 2^84289530 is an apocalyptic number.

84289530 is an abundant number, since it is smaller than the sum of its proper divisors (133567494).

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

84289530 is a wasteful number, since it uses less digits than its factorization.

84289530 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 216150.

The product of its (nonzero) digits is 69120, while the sum is 39.

The square root of 84289530 is about 9180.9329591278. The cubic root of 84289530 is about 438.4545124475.

The spelling of 84289530 in words is "eighty-four million, two hundred eighty-nine thousand, five hundred thirty".