84911388 has 12 divisors (see below), whose sum is σ = 198126600. Its totient is φ = 28303792.

The previous prime is 84911383. The next prime is 84911417. The reversal of 84911388 is 88311948.

It is a tau number, because it is divible by the number of its divisors (12).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (84911381) 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 3 ways as a sum of consecutive naturals, for example, 3537963 + ... + 3537986.

It is an arithmetic number, because the mean of its divisors is an integer number (16510550).

Almost surely, 2^84911388 is an apocalyptic number.

It is an amenable number.

84911388 is an abundant number, since it is smaller than the sum of its proper divisors (113215212).

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

84911388 is a wasteful number, since it uses less digits than its factorization.

84911388 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7075956 (or 7075954 counting only the distinct ones).

The product of its digits is 55296, while the sum is 42.

The square root of 84911388 is about 9214.7375437394. The cubic root of 84911388 is about 439.5301251222.

The spelling of 84911388 in words is "eighty-four million, nine hundred eleven thousand, three hundred eighty-eight".