908977 has 4 divisors (see below), whose sum is σ = 930160. Its totient is φ = 887796.

The previous prime is 908959. The next prime is 908993. The reversal of 908977 is 779809.

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, and also an emirpimes, since its reverse is a distinct semiprime: 779809 = 79 ⋅9871.

It is a cyclic number.

It is not a de Polignac number, because 908977 - 2⁷ = 908849 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (908927) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 10527 + ... + 10612.

It is an arithmetic number, because the mean of its divisors is an integer number (232540).

2⁹⁰⁸⁹⁷⁷ is an apocalyptic number.

It is an amenable number.

908977 is a deficient number, since it is larger than the sum of its proper divisors (21183).

908977 is a wasteful number, since it uses less digits than its factorization.

908977 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 21182.

The product of its (nonzero) digits is 31752, while the sum is 40.

The square root of 908977 is about 953.4028529431. The cubic root of 908977 is about 96.8688843867.

The spelling of 908977 in words is "nine hundred eight thousand, nine hundred seventy-seven".