812952851 has 4 divisors (see below), whose sum is σ = 815365512. Its totient is φ = 810540192.

The previous prime is 812952841. The next prime is 812952919. The reversal of 812952851 is 158259218.

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

It is a cyclic number.

It is not a de Polignac number, because 812952851 - 2²² = 808758547 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 812952799 and 812952808.

It is not an unprimeable number, because it can be changed into a prime (812952821) 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, 1205825 + ... + 1206498.

It is an arithmetic number, because the mean of its divisors is an integer number (203841378).

Almost surely, 2^812952851 is an apocalyptic number.

812952851 is a deficient number, since it is larger than the sum of its proper divisors (2412661).

812952851 is a wasteful number, since it uses less digits than its factorization.

812952851 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2412660.

The product of its digits is 57600, while the sum is 41.

The square root of 812952851 is about 28512.3280529668. The cubic root of 812952851 is about 933.3011181766.

The spelling of 812952851 in words is "eight hundred twelve million, nine hundred fifty-two thousand, eight hundred fifty-one".