807441681 has 4 divisors (see below), whose sum is σ = 1076588912. Its totient is φ = 538294452.

The previous prime is 807441667. The next prime is 807441709. The reversal of 807441681 is 186144708.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is not a de Polignac number, because 807441681 - 2¹⁰ = 807440657 is a prime.

It is a super-2 number, since 2×807441681² = 1303924136432211522, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (807441631) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 134573611 + ... + 134573616.

It is an arithmetic number, because the mean of its divisors is an integer number (269147228).

Almost surely, 2^807441681 is an apocalyptic number.

It is an amenable number.

807441681 is a deficient number, since it is larger than the sum of its proper divisors (269147231).

807441681 is a wasteful number, since it uses less digits than its factorization.

807441681 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 269147230.

The product of its (nonzero) digits is 43008, while the sum is 39.

The square root of 807441681 is about 28415.5183130627. The cubic root of 807441681 is about 931.1873226828.

The spelling of 807441681 in words is "eight hundred seven million, four hundred forty-one thousand, six hundred eighty-one".