8212906946 has 16 divisors (see below), whose sum is σ = 12717894264. Its totient is φ = 3974759424.

The previous prime is 8212906943. The next prime is 8212906957. The reversal of 8212906946 is 6496092128.

It can be written as a sum of positive squares in 4 ways, for example, as 6551121721 + 1661785225 = 80939^2 + 40765^2 .

It is a super-4 number, since 4×8212906946⁴ (a number of 41 digits) contains 4444 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 8212906946.

It is not an unprimeable number, because it can be changed into a prime (8212906943) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 273245 + ... + 301808.

Almost surely, 2^8212906946 is an apocalyptic number.

8212906946 is a deficient number, since it is larger than the sum of its proper divisors (4504987318).

8212906946 is a wasteful number, since it uses less digits than its factorization.

8212906946 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 575285.

The product of its (nonzero) digits is 373248, while the sum is 47.

The square root of 8212906946 is about 90625.0900468518. The cubic root of 8212906946 is about 2017.5871384610.

The spelling of 8212906946 in words is "eight billion, two hundred twelve million, nine hundred six thousand, nine hundred forty-six".