812606163 has 8 divisors (see below), whose sum is σ = 1083618768. Its totient is φ = 541665504.

The previous prime is 812606159. The next prime is 812606177. The reversal of 812606163 is 361606218.

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

It is not a de Polignac number, because 812606163 - 2² = 812606159 is a prime.

It is a super-2 number, since 2×812606163² = 1320657552291165138, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (812606563) 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, 19581 + ... + 44817.

It is an arithmetic number, because the mean of its divisors is an integer number (135452346).

Almost surely, 2^812606163 is an apocalyptic number.

812606163 is a deficient number, since it is larger than the sum of its proper divisors (271012605).

812606163 is a wasteful number, since it uses less digits than its factorization.

812606163 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 35973.

The product of its (nonzero) digits is 10368, while the sum is 33.

The square root of 812606163 is about 28506.2477888620. The cubic root of 812606163 is about 933.1684289299.

The spelling of 812606163 in words is "eight hundred twelve million, six hundred six thousand, one hundred sixty-three".