809677 has 4 divisors (see below), whose sum is σ = 883296. Its totient is φ = 736060.

The previous prime is 809629. The next prime is 809701. The reversal of 809677 is 776908.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 809677 - 2¹¹ = 807629 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (809177) 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 3 ways as a sum of consecutive naturals, for example, 36793 + ... + 36814.

It is an arithmetic number, because the mean of its divisors is an integer number (220824).

2⁸⁰⁹⁶⁷⁷ is an apocalyptic number.

It is an amenable number.

809677 is a deficient number, since it is larger than the sum of its proper divisors (73619).

809677 is a wasteful number, since it uses less digits than its factorization.

809677 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 73618.

The product of its (nonzero) digits is 21168, while the sum is 37.

The square root of 809677 is about 899.8205376629. The cubic root of 809677 is about 93.2045829621.

The spelling of 809677 in words is "eight hundred nine thousand, six hundred seventy-seven".