805977 has 8 divisors (see below), whose sum is σ = 1194080. Its totient is φ = 537300.

The previous prime is 805967. The next prime is 805991. The reversal of 805977 is 779508.

It is not a de Polignac number, because 805977 - 2⁶ = 805913 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (805967) 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, 14899 + ... + 14952.

It is an arithmetic number, because the mean of its divisors is an integer number (149260).

2⁸⁰⁵⁹⁷⁷ is an apocalyptic number.

It is an amenable number.

805977 is a deficient number, since it is larger than the sum of its proper divisors (388103).

805977 is a wasteful number, since it uses less digits than its factorization.

805977 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 29860 (or 29854 counting only the distinct ones).

The product of its (nonzero) digits is 17640, while the sum is 36.

The square root of 805977 is about 897.7622179620. The cubic root of 805977 is about 93.0623930951.

The spelling of 805977 in words is "eight hundred five thousand, nine hundred seventy-seven".