671277 has 4 divisors (see below), whose sum is σ = 895040. Its totient is φ = 447516.

The previous prime is 671269. The next prime is 671287. The reversal of 671277 is 772176.

It is a happy number.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is not a de Polignac number, because 671277 - 2³ = 671269 is a prime.

It is a super-2 number, since 2×671277² = 901225621458, which contains 22 as substring.

It is a D-number.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (671257) 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, 111877 + ... + 111882.

It is an arithmetic number, because the mean of its divisors is an integer number (223760).

2⁶⁷¹²⁷⁷ is an apocalyptic number.

It is an amenable number.

671277 is a deficient number, since it is larger than the sum of its proper divisors (223763).

671277 is a wasteful number, since it uses less digits than its factorization.

671277 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 223762.

The product of its digits is 4116, while the sum is 30.

The square root of 671277 is about 819.3149577543. The cubic root of 671277 is about 87.5589589031.

The spelling of 671277 in words is "six hundred seventy-one thousand, two hundred seventy-seven".