671937 has 16 divisors (see below), whose sum is σ = 1046400. Its totient is φ = 383376.

The previous prime is 671933. The next prime is 671939. The reversal of 671937 is 739176.

It is not a de Polignac number, because 671937 - 2² = 671933 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 671898 and 671907.

It is not an unprimeable number, because it can be changed into a prime (671933) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 703 + ... + 1355.

It is an arithmetic number, because the mean of its divisors is an integer number (65400).

2⁶⁷¹⁹³⁷ is an apocalyptic number.

It is an amenable number.

671937 is a deficient number, since it is larger than the sum of its proper divisors (374463).

671937 is an equidigital number, since it uses as much as digits as its factorization.

671937 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 677 (or 663 counting only the distinct ones).

The product of its digits is 7938, while the sum is 33.

The square root of 671937 is about 819.7176343107. The cubic root of 671937 is about 87.5876455128.

The spelling of 671937 in words is "six hundred seventy-one thousand, nine hundred thirty-seven".