812646746 has 8 divisors (see below), whose sum is σ = 1220838804. Its totient is φ = 405700480.

The previous prime is 812646727. The next prime is 812646763. The reversal of 812646746 is 647646218.

It can be written as a sum of positive squares in 2 ways, for example, as 790453225 + 22193521 = 28115^2 + 4711^2 .

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

It is a junction number, because it is equal to n+sod(n) for n = 812646697 and 812646706.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 309815 + ... + 312426.

Almost surely, 2^812646746 is an apocalyptic number.

812646746 is a deficient number, since it is larger than the sum of its proper divisors (408192058).

812646746 is a wasteful number, since it uses less digits than its factorization.

812646746 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 622896.

The product of its digits is 387072, while the sum is 44.

The square root of 812646746 is about 28506.9596063838. The cubic root of 812646746 is about 933.1839633695.

It can be divided in two parts, 8126 and 46746, that added together give a cube (54872 = 38³).

The spelling of 812646746 in words is "eight hundred twelve million, six hundred forty-six thousand, seven hundred forty-six".