1961738 has 16 divisors (see below), whose sum is σ = 3032640. Its totient is φ = 951456.

The previous prime is 1961737. The next prime is 1961741. The reversal of 1961738 is 8371691.

It is a Curzon number.

It is a junction number, because it is equal to n+sod(n) for n = 1961698 and 1961707.

It is not an unprimeable number, because it can be changed into a prime (1961737) 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 7 ways as a sum of consecutive naturals, for example, 18281 + ... + 18387.

It is an arithmetic number, because the mean of its divisors is an integer number (189540).

2^1961738 is an apocalyptic number.

1961738 is a deficient number, since it is larger than the sum of its proper divisors (1070902).

1961738 is a wasteful number, since it uses less digits than its factorization.

1961738 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 301.

The product of its digits is 9072, while the sum is 35.

The square root of 1961738 is about 1400.6205767445. The cubic root of 1961738 is about 125.1834745649.

The spelling of 1961738 in words is "one million, nine hundred sixty-one thousand, seven hundred thirty-eight".