801628447 has 2 divisors, whose sum is σ = 801628448. Its totient is φ = 801628446.

The previous prime is 801628417. The next prime is 801628483. The reversal of 801628447 is 744826108.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 801628447 - 2¹⁹ = 801104159 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (801628417) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 400814223 + 400814224.

It is an arithmetic number, because the mean of its divisors is an integer number (400814224).

Almost surely, 2^801628447 is an apocalyptic number.

801628447 is a deficient number, since it is larger than the sum of its proper divisors (1).

801628447 is an equidigital number, since it uses as much as digits as its factorization.

801628447 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 86016, while the sum is 40.

The square root of 801628447 is about 28313.0437607828. The cubic root of 801628447 is about 928.9472216024.

It can be divided in two parts, 8016 and 28447, that added together give a palindrome (36463).

The spelling of 801628447 in words is "eight hundred one million, six hundred twenty-eight thousand, four hundred forty-seven".