977243 has 2 divisors, whose sum is σ = 977244. Its totient is φ = 977242.

The previous prime is 977239. The next prime is 977257. The reversal of 977243 is 342779.

It is a happy number.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 977243 - 2² = 977239 is a prime.

It is a Sophie Germain prime.

It is not a weakly prime, because it can be changed into another prime (977203) 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 as a sum of consecutive naturals, namely, 488621 + 488622.

It is an arithmetic number, because the mean of its divisors is an integer number (488622).

2⁹⁷⁷²⁴³ is an apocalyptic number.

977243 is a deficient number, since it is larger than the sum of its proper divisors (1).

977243 is an equidigital number, since it uses as much as digits as its factorization.

977243 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 10584, while the sum is 32.

The square root of 977243 is about 988.5560176338. The cubic root of 977243 is about 99.2356052275.

The spelling of 977243 in words is "nine hundred seventy-seven thousand, two hundred forty-three".