84388895 has 4 divisors (see below), whose sum is σ = 101266680. Its totient is φ = 67511112.

The previous prime is 84388891. The next prime is 84388907. The reversal of 84388895 is 59888348.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 84388895 - 2² = 84388891 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (84388891) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 8438885 + ... + 8438894.

It is an arithmetic number, because the mean of its divisors is an integer number (25316670).

Almost surely, 2^84388895 is an apocalyptic number.

84388895 is a deficient number, since it is larger than the sum of its proper divisors (16877785).

84388895 is a wasteful number, since it uses less digits than its factorization.

84388895 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 16877784.

The product of its digits is 2211840, while the sum is 53.

The square root of 84388895 is about 9186.3428522998. The cubic root of 84388895 is about 438.6267359890.

The spelling of 84388895 in words is "eighty-four million, three hundred eighty-eight thousand, eight hundred ninety-five".