84353641 has 4 divisors (see below), whose sum is σ = 84871312. Its totient is φ = 83835972.

The previous prime is 84353639. The next prime is 84353669. The reversal of 84353641 is 14635348.

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 a cyclic number.

It is not a de Polignac number, because 84353641 - 2¹ = 84353639 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 84353597 and 84353606.

It is not an unprimeable number, because it can be changed into a prime (84353611) 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, 258591 + ... + 258916.

It is an arithmetic number, because the mean of its divisors is an integer number (21217828).

Almost surely, 2^84353641 is an apocalyptic number.

It is an amenable number.

84353641 is a deficient number, since it is larger than the sum of its proper divisors (517671).

84353641 is a wasteful number, since it uses less digits than its factorization.

84353641 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 517670.

The product of its digits is 34560, while the sum is 34.

The square root of 84353641 is about 9184.4238251509. The cubic root of 84353641 is about 438.5656477746.

Adding to 84353641 its reverse (14635348), we get a palindrome (98988989).

The spelling of 84353641 in words is "eighty-four million, three hundred fifty-three thousand, six hundred forty-one".