86050421 has 2 divisors, whose sum is σ = 86050422. Its totient is φ = 86050420.

The previous prime is 86050409. The next prime is 86050441. The reversal of 86050421 is 12405068.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 73702225 + 12348196 = 8585^2 + 3514^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-86050421 is a prime.

It is a Chen prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (86050441) 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 as a sum of consecutive naturals, namely, 43025210 + 43025211.

It is an arithmetic number, because the mean of its divisors is an integer number (43025211).

Almost surely, 2^86050421 is an apocalyptic number.

It is an amenable number.

86050421 is a deficient number, since it is larger than the sum of its proper divisors (1).

86050421 is an equidigital number, since it uses as much as digits as its factorization.

86050421 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 1920, while the sum is 26.

The square root of 86050421 is about 9276.3366152808. The cubic root of 86050421 is about 441.4867423929.

Adding to 86050421 its reverse (12405068), we get a palindrome (98455489).

The spelling of 86050421 in words is "eighty-six million, fifty thousand, four hundred twenty-one".