807809941 has 4 divisors (see below), whose sum is σ = 823051692. Its totient is φ = 792568192.

The previous prime is 807809903. The next prime is 807809971. The reversal of 807809941 is 149908708.

It is a happy number.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 260951716 + 546858225 = 16154^2 + 23385^2 .

It is a cyclic number.

It is not a de Polignac number, because 807809941 - 2¹⁷ = 807678869 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 807809891 and 807809900.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (807809971) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 7620796 + ... + 7620901.

It is an arithmetic number, because the mean of its divisors is an integer number (205762923).

Almost surely, 2^807809941 is an apocalyptic number.

It is an amenable number.

807809941 is a deficient number, since it is larger than the sum of its proper divisors (15241751).

807809941 is a wasteful number, since it uses less digits than its factorization.

807809941 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 15241750.

The product of its (nonzero) digits is 145152, while the sum is 46.

The square root of 807809941 is about 28421.9974843430. The cubic root of 807809941 is about 931.3288672392.

The spelling of 807809941 in words is "eight hundred seven million, eight hundred nine thousand, nine hundred forty-one".