801435847 has 2 divisors, whose sum is σ = 801435848. Its totient is φ = 801435846.

The previous prime is 801435841. The next prime is 801435857. The reversal of 801435847 is 748534108.

It is a weak prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-801435847 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (801435841) 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, 400717923 + 400717924.

It is an arithmetic number, because the mean of its divisors is an integer number (400717924).

Almost surely, 2^801435847 is an apocalyptic number.

801435847 is a deficient number, since it is larger than the sum of its proper divisors (1).

801435847 is an equidigital number, since it uses as much as digits as its factorization.

801435847 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 107520, while the sum is 40.

The square root of 801435847 is about 28309.6422972810. The cubic root of 801435847 is about 928.8728190674.

The spelling of 801435847 in words is "eight hundred one million, four hundred thirty-five thousand, eight hundred forty-seven".