977285 has 4 divisors (see below), whose sum is σ = 1172748. Its totient is φ = 781824.

The previous prime is 977269. The next prime is 977299. The reversal of 977285 is 582779.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 582779 = 43 ⋅13553.

It can be written as a sum of positive squares in 2 ways, for example, as 114244 + 863041 = 338^2 + 929^2 .

It is a cyclic number.

It is not a de Polignac number, because 977285 - 2⁴ = 977269 is a prime.

It is a Duffinian number.

It is a nialpdrome in base 16.

It is a congruent number.

It is an unprimeable number.

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, 97724 + ... + 97733.

It is an arithmetic number, because the mean of its divisors is an integer number (293187).

2⁹⁷⁷²⁸⁵ is an apocalyptic number.

It is an amenable number.

977285 is a deficient number, since it is larger than the sum of its proper divisors (195463).

977285 is a wasteful number, since it uses less digits than its factorization.

977285 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 195462.

The product of its digits is 35280, while the sum is 38.

The square root of 977285 is about 988.5772605113. The cubic root of 977285 is about 99.2370268581.

The spelling of 977285 in words is "nine hundred seventy-seven thousand, two hundred eighty-five".