1671601 has 8 divisors (see below), whose sum is σ = 1779680. Its totient is φ = 1565568.

The previous prime is 1671599. The next prime is 1671619. The reversal of 1671601 is 1061761.

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 1671601 - 2¹ = 1671599 is a prime.

It is a Duffinian number.

1671601 is a lucky number.

It is not an unprimeable number, because it can be changed into a prime (1671641) 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, 1390 + ... + 2296.

It is an arithmetic number, because the mean of its divisors is an integer number (222460).

2^1671601 is an apocalyptic number.

It is an amenable number.

1671601 is a deficient number, since it is larger than the sum of its proper divisors (108079).

1671601 is an equidigital number, since it uses as much as digits as its factorization.

1671601 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1023.

The product of its (nonzero) digits is 252, while the sum is 22.

The square root of 1671601 is about 1292.9040954379. The cubic root of 1671601 is about 118.6800008512.

It can be divided in two parts, 16 and 71601, that added together give a palindrome (71617).

The spelling of 1671601 in words is "one million, six hundred seventy-one thousand, six hundred one".