1961937 has 12 divisors (see below), whose sum is σ = 2932020. Its totient is φ = 1262688.

The previous prime is 1961933. The next prime is 1961957. The reversal of 1961937 is 7391691.

1961937 is a `hidden beast` number, since 1 + 9 + 619 + 37 = 666.

It can be written as a sum of positive squares in 2 ways, for example, as 1498176 + 463761 = 1224^2 + 681^2 .

It is not a de Polignac number, because 1961937 - 2² = 1961933 is a prime.

It is not an unprimeable number, because it can be changed into a prime (1961933) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 3498 + ... + 4019.

It is an arithmetic number, because the mean of its divisors is an integer number (244335).

2^1961937 is an apocalyptic number.

It is an amenable number.

1961937 is a deficient number, since it is larger than the sum of its proper divisors (970083).

1961937 is a wasteful number, since it uses less digits than its factorization.

1961937 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7552 (or 7549 counting only the distinct ones).

The product of its digits is 10206, while the sum is 36.

The square root of 1961937 is about 1400.6916148817. The cubic root of 1961937 is about 125.1877073199.

The spelling of 1961937 in words is "one million, nine hundred sixty-one thousand, nine hundred thirty-seven".