84207841 has 8 divisors (see below), whose sum is σ = 85833000. Its totient is φ = 82598400.

The previous prime is 84207839. The next prime is 84207857. The reversal of 84207841 is 14870248.

It can be written as a sum of positive squares in 4 ways, for example, as 19324816 + 64883025 = 4396^2 + 8055^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 84207841 - 2¹ = 84207839 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 84207797 and 84207806.

It is not an unprimeable number, because it can be changed into a prime (84207041) 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 7 ways as a sum of consecutive naturals, for example, 7185 + ... + 14833.

It is an arithmetic number, because the mean of its divisors is an integer number (10729125).

Almost surely, 2^84207841 is an apocalyptic number.

It is an amenable number.

84207841 is a deficient number, since it is larger than the sum of its proper divisors (1625159).

84207841 is a wasteful number, since it uses less digits than its factorization.

84207841 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7859.

The product of its (nonzero) digits is 14336, while the sum is 34.

The square root of 84207841 is about 9176.4830409041. The cubic root of 84207841 is about 438.3128242784.

It can be divided in two parts, 8420 and 7841, that added together give a palindrome (16261).

The spelling of 84207841 in words is "eighty-four million, two hundred seven thousand, eight hundred forty-one".