7006433821 has 2 divisors, whose sum is σ = 7006433822. Its totient is φ = 7006433820.

The previous prime is 7006433809. The next prime is 7006433851. The reversal of 7006433821 is 1283346007.

It is a happy number.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 4177683225 + 2828750596 = 64635^2 + 53186^2 .

It is a cyclic number.

It is not a de Polignac number, because 7006433821 - 2¹⁷ = 7006302749 is a prime.

It is a super-2 number, since 2×7006433821² = 98180229776105320082, which contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (7006433851) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 3503216910 + 3503216911.

It is an arithmetic number, because the mean of its divisors is an integer number (3503216911).

Almost surely, 2^7006433821 is an apocalyptic number.

It is an amenable number.

7006433821 is a deficient number, since it is larger than the sum of its proper divisors (1).

7006433821 is an equidigital number, since it uses as much as digits as its factorization.

7006433821 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 24192, while the sum is 34.

The square root of 7006433821 is about 83704.4432572131. The cubic root of 7006433821 is about 1913.5170726807.

Adding to 7006433821 its reverse (1283346007), we get a palindrome (8289779828).

The spelling of 7006433821 in words is "seven billion, six million, four hundred thirty-three thousand, eight hundred twenty-one".