1671471 has 12 divisors (see below), whose sum is σ = 2427880. Its totient is φ = 1108080.

The previous prime is 1671463. The next prime is 1671493. The reversal of 1671471 is 1741761.

It is not a de Polignac number, because 1671471 - 2³ = 1671463 is a prime.

It is a super-3 number, since 3×1671471³ = 14009343779179260333, which contains 333 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1671421) 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, 1656 + ... + 2466.

2^1671471 is an apocalyptic number.

1671471 is a deficient number, since it is larger than the sum of its proper divisors (756409).

1671471 is a wasteful number, since it uses less digits than its factorization.

1671471 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1046 (or 1043 counting only the distinct ones).

The product of its digits is 1176, while the sum is 27.

The square root of 1671471 is about 1292.8538200431. The cubic root of 1671471 is about 118.6769241999.

The spelling of 1671471 in words is "one million, six hundred seventy-one thousand, four hundred seventy-one".