851736946 has 8 divisors (see below), whose sum is σ = 1286931420. Its totient is φ = 422759808.

The previous prime is 851736863. The next prime is 851736947. The reversal of 851736946 is 649637158.

851736946 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It can be written as a sum of positive squares in 2 ways, for example, as 780587721 + 71149225 = 27939^2 + 8435^2 .

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

It is a self number, because there is not a number n which added to its sum of digits gives 851736946.

It is not an unprimeable number, because it can be changed into a prime (851736947) 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, 1553991 + ... + 1554538.

Almost surely, 2^851736946 is an apocalyptic number.

851736946 is a deficient number, since it is larger than the sum of its proper divisors (435194474).

851736946 is a wasteful number, since it uses less digits than its factorization.

851736946 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3108668.

The product of its digits is 1088640, while the sum is 49.

The square root of 851736946 is about 29184.5326500186. The cubic root of 851736946 is about 947.9130349524.

The spelling of 851736946 in words is "eight hundred fifty-one million, seven hundred thirty-six thousand, nine hundred forty-six".