671470 has 16 divisors (see below), whose sum is σ = 1224720. Its totient is φ = 265024.

The previous prime is 671467. The next prime is 671471. The reversal of 671470 is 74176.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (671471) 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 in 7 ways as a sum of consecutive naturals, for example, 426 + ... + 1234.

It is an arithmetic number, because the mean of its divisors is an integer number (76545).

2⁶⁷¹⁴⁷⁰ is an apocalyptic number.

671470 is a deficient number, since it is larger than the sum of its proper divisors (553250).

671470 is a wasteful number, since it uses less digits than its factorization.

671470 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 899.

The product of its (nonzero) digits is 1176, while the sum is 25.

The square root of 671470 is about 819.4327306131. The cubic root of 671470 is about 87.5673495077.

The spelling of 671470 in words is "six hundred seventy-one thousand, four hundred seventy".