84565380 has 48 divisors (see below), whose sum is σ = 239649984. Its totient is φ = 22277760.

The previous prime is 84565373. The next prime is 84565433. The reversal of 84565380 is 8356548.

It is a happy number.

It is an unprimeable number.

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 15 ways as a sum of consecutive naturals, for example, 3511 + ... + 13470.

It is an arithmetic number, because the mean of its divisors is an integer number (4992708).

Almost surely, 2^84565380 is an apocalyptic number.

It is an amenable number.

84565380 is an abundant number, since it is smaller than the sum of its proper divisors (155084604).

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

84565380 is a wasteful number, since it uses less digits than its factorization.

84565380 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 17076 (or 17074 counting only the distinct ones).

The product of its (nonzero) digits is 115200, while the sum is 39.

The square root of 84565380 is about 9195.9436709889. The cubic root of 84565380 is about 438.9322941161.

The spelling of 84565380 in words is "eighty-four million, five hundred sixty-five thousand, three hundred eighty".