977443 has 4 divisors (see below), whose sum is σ = 980728. Its totient is φ = 974160.

The previous prime is 977437. The next prime is 977447. The reversal of 977443 is 344779.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 344779 = 73 ⋅4723.

It is a cyclic number.

It is not a de Polignac number, because 977443 - 2⁵ = 977411 is a prime.

It is a Duffinian number.

It is a nialpdrome in base 10.

It is a junction number, because it is equal to n+sod(n) for n = 977399 and 977408.

It is not an unprimeable number, because it can be changed into a prime (977447) by changing a digit.

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, 1146 + ... + 1807.

It is an arithmetic number, because the mean of its divisors is an integer number (245182).

2⁹⁷⁷⁴⁴³ is an apocalyptic number.

977443 is a deficient number, since it is larger than the sum of its proper divisors (3285).

977443 is a wasteful number, since it uses less digits than its factorization.

977443 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3284.

The product of its digits is 21168, while the sum is 34.

The square root of 977443 is about 988.6571701050. The cubic root of 977443 is about 99.2423745323.

The spelling of 977443 in words is "nine hundred seventy-seven thousand, four hundred forty-three".