812877 has 16 divisors (see below), whose sum is σ = 1229760. Its totient is φ = 473472.

The previous prime is 812869. The next prime is 812921. The reversal of 812877 is 778218.

It is not a de Polignac number, because 812877 - 2³ = 812869 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (812807) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 193 + ... + 1289.

It is an arithmetic number, because the mean of its divisors is an integer number (76860).

2⁸¹²⁸⁷⁷ is an apocalyptic number.

It is an amenable number.

812877 is a deficient number, since it is larger than the sum of its proper divisors (416883).

812877 is a wasteful number, since it uses less digits than its factorization.

812877 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1132.

The product of its digits is 6272, while the sum is 33.

The square root of 812877 is about 901.5969165875. The cubic root of 812877 is about 93.3272090653.

The spelling of 812877 in words is "eight hundred twelve thousand, eight hundred seventy-seven".