1671472 has 20 divisors (see below), whose sum is σ = 3533256. Its totient is φ = 759680.

The previous prime is 1671463. The next prime is 1671493. The reversal of 1671472 is 2741761.

It is a self number, because there is not a number n which added to its sum of digits gives 1671472.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (7) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 4573 + ... + 4924.

2^1671472 is an apocalyptic number.

It is an amenable number.

1671472 is an abundant number, since it is smaller than the sum of its proper divisors (1861784).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

1671472 is a wasteful number, since it uses less digits than its factorization.

1671472 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 9516 (or 9510 counting only the distinct ones).

The product of its digits is 2352, while the sum is 28.

The square root of 1671472 is about 1292.8542067844. The cubic root of 1671472 is about 118.6769478671.

The spelling of 1671472 in words is "one million, six hundred seventy-one thousand, four hundred seventy-two".