844812946 has 4 divisors (see below), whose sum is σ = 1267219422. Its totient is φ = 422406472.

The previous prime is 844812937. The next prime is 844812967. The reversal of 844812946 is 649218448.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in only one way, i.e., 787644225 + 57168721 = 28065^2 + 7561^2 .

It is a junction number, because it is equal to n+sod(n) for n = 844812896 and 844812905.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 211203235 + ... + 211203238.

Almost surely, 2^844812946 is an apocalyptic number.

844812946 is a deficient number, since it is larger than the sum of its proper divisors (422406476).

844812946 is a wasteful number, since it uses less digits than its factorization.

844812946 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 422406475.

The product of its digits is 442368, while the sum is 46.

The square root of 844812946 is about 29065.6661028093. Note that the first 3 decimals coincide. The cubic root of 844812946 is about 945.3374292145.

The spelling of 844812946 in words is "eight hundred forty-four million, eight hundred twelve thousand, nine hundred forty-six".