1961726 has 16 divisors (see below), whose sum is σ = 3193344. Its totient is φ = 898464.

The previous prime is 1961683. The next prime is 1961737. The reversal of 1961726 is 6271691.

It is a happy number.

It is a junction number, because it is equal to n+sod(n) for n = 1961692 and 1961701.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 4931 + ... + 5313.

It is an arithmetic number, because the mean of its divisors is an integer number (199584).

2^1961726 is an apocalyptic number.

1961726 is a deficient number, since it is larger than the sum of its proper divisors (1231618).

1961726 is a wasteful number, since it uses less digits than its factorization.

1961726 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 595.

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

The square root of 1961726 is about 1400.6162929225. The cubic root of 1961726 is about 125.1832193143.

The spelling of 1961726 in words is "one million, nine hundred sixty-one thousand, seven hundred twenty-six".