677443 has 12 divisors (see below), whose sum is σ = 771904. Its totient is φ = 590400.

The previous prime is 677441. The next prime is 677447. The reversal of 677443 is 344776.

It is not a de Polignac number, because 677443 - 2¹ = 677441 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (31).

It is a Duffinian number.

Its product of digits (14112) is a multiple of the sum of its prime factors (126).

It is not an unprimeable number, because it can be changed into a prime (677441) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 16503 + ... + 16543.

2⁶⁷⁷⁴⁴³ is an apocalyptic number.

677443 is a deficient number, since it is larger than the sum of its proper divisors (94461).

677443 is a wasteful number, since it uses less digits than its factorization.

677443 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 126 (or 85 counting only the distinct ones).

The product of its digits is 14112, while the sum is 31.

The square root of 677443 is about 823.0692558953. The cubic root of 677443 is about 87.8262325125.

The spelling of 677443 in words is "six hundred seventy-seven thousand, four hundred forty-three".