800785137 has 8 divisors (see below), whose sum is σ = 1068333760. Its totient is φ = 533546640.

The previous prime is 800785123. The next prime is 800785151. The reversal of 800785137 is 731587008.

It is an interprime number because it is at equal distance from previous prime (800785123) and next prime (800785151).

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 800785137 - 2¹⁰ = 800784113 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 800785095 and 800785104.

It is not an unprimeable number, because it can be changed into a prime (800786137) 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 in 7 ways as a sum of consecutive naturals, for example, 71437 + ... + 81882.

It is an arithmetic number, because the mean of its divisors is an integer number (133541720).

Almost surely, 2^800785137 is an apocalyptic number.

It is an amenable number.

800785137 is a deficient number, since it is larger than the sum of its proper divisors (267548623).

800785137 is a wasteful number, since it uses less digits than its factorization.

800785137 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 155063.

The product of its (nonzero) digits is 47040, while the sum is 39.

The square root of 800785137 is about 28298.1472361708. The cubic root of 800785137 is about 928.6213576883.

The spelling of 800785137 in words is "eight hundred million, seven hundred eighty-five thousand, one hundred thirty-seven".