977255 has 8 divisors (see below), whose sum is σ = 1179024. Its totient is φ = 777600.

The previous prime is 977243. The next prime is 977257. The reversal of 977255 is 552779.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 977255 - 2⁴ = 977239 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 (977257) 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 7 ways as a sum of consecutive naturals, for example, 800 + ... + 1610.

It is an arithmetic number, because the mean of its divisors is an integer number (147378).

2⁹⁷⁷²⁵⁵ is an apocalyptic number.

977255 is a deficient number, since it is larger than the sum of its proper divisors (201769).

977255 is a wasteful number, since it uses less digits than its factorization.

977255 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1057.

The product of its digits is 22050, while the sum is 35.

The square root of 977255 is about 988.5620870739. The cubic root of 977255 is about 99.2360114118.

The spelling of 977255 in words is "nine hundred seventy-seven thousand, two hundred fifty-five".