84573780 has 48 divisors (see below), whose sum is σ = 240153984. Its totient is φ = 22234240.

The previous prime is 84573761. The next prime is 84573781. The reversal of 84573780 is 8737548.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (84573781) 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 15 ways as a sum of consecutive naturals, for example, 5667 + ... + 14186.

It is an arithmetic number, because the mean of its divisors is an integer number (5003208).

Almost surely, 2^84573780 is an apocalyptic number.

It is an amenable number.

84573780 is an abundant number, since it is smaller than the sum of its proper divisors (155580204).

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

84573780 is a wasteful number, since it uses less digits than its factorization.

84573780 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 19936 (or 19934 counting only the distinct ones).

The product of its (nonzero) digits is 188160, while the sum is 42.

The square root of 84573780 is about 9196.4003827585. The cubic root of 84573780 is about 438.9468268922.

The spelling of 84573780 in words is "eighty-four million, five hundred seventy-three thousand, seven hundred eighty".