801344765 has 16 divisors (see below), whose sum is σ = 1041726000. Its totient is φ = 591754176.

The previous prime is 801344749. The next prime is 801344767. The reversal of 801344765 is 567443108.

It can be written as a sum of positive squares in 8 ways, for example, as 319015321 + 482329444 = 17861^2 + 21962^2 .

It is not a de Polignac number, because 801344765 - 2⁴ = 801344749 is a prime.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (801344767) 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 in 15 ways as a sum of consecutive naturals, for example, 25490 + ... + 47459.

It is an arithmetic number, because the mean of its divisors is an integer number (65107875).

Almost surely, 2^801344765 is an apocalyptic number.

It is an amenable number.

801344765 is a deficient number, since it is larger than the sum of its proper divisors (240381235).

801344765 is an equidigital number, since it uses as much as digits as its factorization.

801344765 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 72993 (or 72967 counting only the distinct ones).

The product of its (nonzero) digits is 80640, while the sum is 38.

The square root of 801344765 is about 28308.0335770608. The cubic root of 801344765 is about 928.8376293931.

The spelling of 801344765 in words is "eight hundred one million, three hundred forty-four thousand, seven hundred sixty-five".