1667361 has 8 divisors (see below), whose sum is σ = 2229120. Its totient is φ = 1108592.

The previous prime is 1667359. The next prime is 1667363. The reversal of 1667361 is 1637661.

It is an interprime number because it is at equal distance from previous prime (1667359) and next prime (1667363).

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 1667361 - 2¹ = 1667359 is a prime.

It is not an unprimeable number, because it can be changed into a prime (1667363) 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, 1771 + ... + 2543.

It is an arithmetic number, because the mean of its divisors is an integer number (278640).

2^1667361 is an apocalyptic number.

It is an amenable number.

1667361 is a deficient number, since it is larger than the sum of its proper divisors (561759).

1667361 is an equidigital number, since it uses as much as digits as its factorization.

1667361 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1495.

The product of its digits is 4536, while the sum is 30.

The square root of 1667361 is about 1291.2633348779. The cubic root of 1667361 is about 118.5795723277.

The spelling of 1667361 in words is "one million, six hundred sixty-seven thousand, three hundred sixty-one".