1968741 has 6 divisors (see below), whose sum is σ = 2843750. Its totient is φ = 1312488.

The previous prime is 1968739. The next prime is 1968749. The reversal of 1968741 is 1478691.

It can be written as a sum of positive squares in only one way, i.e., 1766241 + 202500 = 1329^2 + 450^2 .

It is not a de Polignac number, because 1968741 - 2¹ = 1968739 is a prime.

It is a super-2 number, since 2×1968741² = 7751882250162, which contains 22 as substring.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 1968696 and 1968705.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1968749) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 109366 + ... + 109383.

2^1968741 is an apocalyptic number.

It is an amenable number.

1968741 is a deficient number, since it is larger than the sum of its proper divisors (875009).

1968741 is a wasteful number, since it uses less digits than its factorization.

1968741 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 218755 (or 218752 counting only the distinct ones).

The product of its digits is 12096, while the sum is 36.

The square root of 1968741 is about 1403.1183129017. The cubic root of 1968741 is about 125.3322573910.

The spelling of 1968741 in words is "one million, nine hundred sixty-eight thousand, seven hundred forty-one".