84394641 has 4 divisors (see below), whose sum is σ = 112526192. Its totient is φ = 56263092.

The previous prime is 84394633. The next prime is 84394693. The reversal of 84394641 is 14649348.

It is a happy number.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is not a de Polignac number, because 84394641 - 2³ = 84394633 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 84394641.

It is not an unprimeable number, because it can be changed into a prime (84394621) 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 3 ways as a sum of consecutive naturals, for example, 14065771 + ... + 14065776.

It is an arithmetic number, because the mean of its divisors is an integer number (28131548).

Almost surely, 2^84394641 is an apocalyptic number.

It is an amenable number.

84394641 is a deficient number, since it is larger than the sum of its proper divisors (28131551).

84394641 is a wasteful number, since it uses less digits than its factorization.

84394641 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 28131550.

The product of its digits is 82944, while the sum is 39.

The square root of 84394641 is about 9186.6555938492. The cubic root of 84394641 is about 438.6366910589.

The spelling of 84394641 in words is "eighty-four million, three hundred ninety-four thousand, six hundred forty-one".