84044147 has 4 divisors (see below), whose sum is σ = 91684536. Its totient is φ = 76403760.

The previous prime is 84044099. The next prime is 84044159. The reversal of 84044147 is 74144048.

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 84044147 - 2⁶ = 84044083 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (84044647) 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, 3820178 + ... + 3820199.

It is an arithmetic number, because the mean of its divisors is an integer number (22921134).

Almost surely, 2^84044147 is an apocalyptic number.

84044147 is a deficient number, since it is larger than the sum of its proper divisors (7640389).

84044147 is a wasteful number, since it uses less digits than its factorization.

84044147 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7640388.

The product of its (nonzero) digits is 14336, while the sum is 32.

The square root of 84044147 is about 9167.5594898533. The cubic root of 84044147 is about 438.0286238183.

Subtracting from 84044147 its reverse (74144048), we obtain a palindrome (9900099).

The spelling of 84044147 in words is "eighty-four million, forty-four thousand, one hundred forty-seven".