1961768 has 16 divisors (see below), whose sum is σ = 3768660. Its totient is φ = 956800.

The previous prime is 1961767. The next prime is 1961797. The reversal of 1961768 is 8671691.

It can be written as a sum of positive squares in 2 ways, for example, as 1350244 + 611524 = 1162^2 + 782^2 .

It is not an unprimeable number, because it can be changed into a prime (1961767) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 2663 + ... + 3318.

2^1961768 is an apocalyptic number.

It is an amenable number.

1961768 is a deficient number, since it is larger than the sum of its proper divisors (1806892).

1961768 is a wasteful number, since it uses less digits than its factorization.

1961768 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6028 (or 6024 counting only the distinct ones).

The product of its digits is 18144, while the sum is 38.

The square root of 1961768 is about 1400.6312862420. The cubic root of 1961768 is about 125.1841126870.

It can be divided in two parts, 196 and 1768, that multiplied together give a triangular number (346528 = T₈₃₂).

The spelling of 1961768 in words is "one million, nine hundred sixty-one thousand, seven hundred sixty-eight".