1726961 has 8 divisors (see below), whose sum is σ = 1796424. Its totient is φ = 1658880.

The previous prime is 1726957. The next prime is 1726969. The reversal of 1726961 is 1696271.

It is a happy number.

It can be written as a sum of positive squares in 4 ways, for example, as 390625 + 1336336 = 625^2 + 1156^2 .

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 1726961 - 2² = 1726957 is a prime.

It is an Ulam number.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (1726969) 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, 2705 + ... + 3281.

It is an arithmetic number, because the mean of its divisors is an integer number (224553).

2^1726961 is an apocalyptic number.

It is an amenable number.

1726961 is a deficient number, since it is larger than the sum of its proper divisors (69463).

1726961 is an equidigital number, since it uses as much as digits as its factorization.

1726961 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 691.

The product of its digits is 4536, while the sum is 32.

The square root of 1726961 is about 1314.1388815494. The cubic root of 1726961 is about 119.9759442521.

The spelling of 1726961 in words is "one million, seven hundred twenty-six thousand, nine hundred sixty-one".