1671473 has 4 divisors (see below), whose sum is σ = 1729140. Its totient is φ = 1613808.

The previous prime is 1671463. The next prime is 1671493. The reversal of 1671473 is 3741761.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 3741761 = 73 ⋅51257.

It can be written as a sum of positive squares in 2 ways, for example, as 937024 + 734449 = 968^2 + 857^2 .

It is a cyclic number.

It is not a de Polignac number, because 1671473 - 2¹⁴ = 1655089 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (29), and also a Moran number because the ratio is a prime number: 57637 = 1671473 / (1 + 6 + 7 + 1 + 4 + 7 + 3).

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (1671443) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 28790 + ... + 28847.

It is an arithmetic number, because the mean of its divisors is an integer number (432285).

2^1671473 is an apocalyptic number.

It is an amenable number.

1671473 is a deficient number, since it is larger than the sum of its proper divisors (57667).

1671473 is an equidigital number, since it uses as much as digits as its factorization.

1671473 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 57666.

The product of its digits is 3528, while the sum is 29.

The square root of 1671473 is about 1292.8545935255. The cubic root of 1671473 is about 118.6769715342.

The spelling of 1671473 in words is "one million, six hundred seventy-one thousand, four hundred seventy-three".