1768641 has 8 divisors (see below), whose sum is σ = 2695104. Its totient is φ = 1010640.

The previous prime is 1768639. The next prime is 1768651. The reversal of 1768641 is 1468671.

It is a happy number.

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

It is not a de Polignac number, because 1768641 - 2¹ = 1768639 is a prime.

It is not an unprimeable number, because it can be changed into a prime (1768651) 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, 42090 + ... + 42131.

It is an arithmetic number, because the mean of its divisors is an integer number (336888).

2^1768641 is an apocalyptic number.

It is an amenable number.

1768641 is a deficient number, since it is larger than the sum of its proper divisors (926463).

1768641 is an equidigital number, since it uses as much as digits as its factorization.

1768641 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 84231.

The product of its digits is 8064, while the sum is 33.

The square root of 1768641 is about 1329.9026280145. The cubic root of 1768641 is about 120.9334834647.

The spelling of 1768641 in words is "one million, seven hundred sixty-eight thousand, six hundred forty-one".