84621241 has 2 divisors, whose sum is σ = 84621242. Its totient is φ = 84621240.

The previous prime is 84621211. The next prime is 84621283. The reversal of 84621241 is 14212648.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 58201641 + 26419600 = 7629^2 + 5140^2 .

It is a cyclic number.

It is not a de Polignac number, because 84621241 - 2¹¹ = 84619193 is a prime.

It is not a weakly prime, because it can be changed into another prime (84621211) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 42310620 + 42310621.

It is an arithmetic number, because the mean of its divisors is an integer number (42310621).

Almost surely, 2^84621241 is an apocalyptic number.

It is an amenable number.

84621241 is a deficient number, since it is larger than the sum of its proper divisors (1).

84621241 is an equidigital number, since it uses as much as digits as its factorization.

84621241 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 3072, while the sum is 28.

The square root of 84621241 is about 9198.9804326349. The cubic root of 84621241 is about 439.0289207342.

Adding to 84621241 its reverse (14212648), we get a palindrome (98833889).

The spelling of 84621241 in words is "eighty-four million, six hundred twenty-one thousand, two hundred forty-one".