800961761 has 4 divisors (see below), whose sum is σ = 801028800. Its totient is φ = 800894724.

The previous prime is 800961737. The next prime is 800961769. The reversal of 800961761 is 167169008.

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, and also a brilliant number, because the two primes have the same length.

It is a cyclic number.

It is not a de Polignac number, because 800961761 - 2¹⁰ = 800960737 is a prime.

It is a super-3 number, since 3×800961761³ (a number of 28 digits) contains 333 as substring. Note that it is a super-d number also for d = 2.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (800961769) 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 3 ways as a sum of consecutive naturals, for example, 10181 + ... + 41298.

It is an arithmetic number, because the mean of its divisors is an integer number (200257200).

Almost surely, 2^800961761 is an apocalyptic number.

It is an amenable number.

800961761 is a deficient number, since it is larger than the sum of its proper divisors (67039).

800961761 is a wasteful number, since it uses less digits than its factorization.

800961761 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 67038.

The product of its (nonzero) digits is 18144, while the sum is 38.

The square root of 800961761 is about 28301.2678337915. The cubic root of 800961761 is about 928.6896260056.

The spelling of 800961761 in words is "eight hundred million, nine hundred sixty-one thousand, seven hundred sixty-one".