84553378 has 32 divisors (see below), whose sum is σ = 156635136. Its totient is φ = 33334848.

The previous prime is 84553373. The next prime is 84553409. The reversal of 84553378 is 87335548.

It is not an unprimeable number, because it can be changed into a prime (84553373) 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 15 ways as a sum of consecutive naturals, for example, 69100 + ... + 70312.

It is an arithmetic number, because the mean of its divisors is an integer number (4894848).

Almost surely, 2^84553378 is an apocalyptic number.

84553378 is a deficient number, since it is larger than the sum of its proper divisors (72081758).

84553378 is a wasteful number, since it uses less digits than its factorization.

84553378 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1618.

The product of its digits is 403200, while the sum is 43.

The square root of 84553378 is about 9195.2910775027. The cubic root of 84553378 is about 438.9115278773.

The spelling of 84553378 in words is "eighty-four million, five hundred fifty-three thousand, three hundred seventy-eight".