1671401 has 8 divisors (see below), whose sum is σ = 1732800. Its totient is φ = 1610928.

The previous prime is 1671379. The next prime is 1671421. The reversal of 1671401 is 1041761.

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 1671401 - 2⁶ = 1671337 is a prime.

It is a Duffinian 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, 7250 + ... + 7476.

It is an arithmetic number, because the mean of its divisors is an integer number (216600).

2^1671401 is an apocalyptic number.

It is an amenable number.

1671401 is a deficient number, since it is larger than the sum of its proper divisors (61399).

1671401 is a wasteful number, since it uses less digits than its factorization.

1671401 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 463.

The product of its (nonzero) digits is 168, while the sum is 20.

The square root of 1671401 is about 1292.8267478669. The cubic root of 1671401 is about 118.6752674755.

It can be divided in two parts, 16 and 71401, that added together give a palindrome (71417).

The spelling of 1671401 in words is "one million, six hundred seventy-one thousand, four hundred one".