1671481 has 8 divisors (see below), whose sum is σ = 1937024. Its totient is φ = 1412640.

The previous prime is 1671463. The next prime is 1671493. The reversal of 1671481 is 1841761.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 1671481 - 2¹¹ = 1669433 is a prime.

It is a super-2 number, since 2×1671481² = 5587697466722, which contains 22 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 7 ways as a sum of consecutive naturals, for example, 1125 + ... + 2146.

It is an arithmetic number, because the mean of its divisors is an integer number (242128).

2^1671481 is an apocalyptic number.

It is an amenable number.

1671481 is a deficient number, since it is larger than the sum of its proper divisors (265543).

1671481 is an equidigital number, since it uses as much as digits as its factorization.

1671481 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3351.

The product of its digits is 1344, while the sum is 28.

The square root of 1671481 is about 1292.8576874506. The cubic root of 1671481 is about 118.6771608711.

The spelling of 1671481 in words is "one million, six hundred seventy-one thousand, four hundred eighty-one".