1973761 has 2 divisors, whose sum is σ = 1973762. Its totient is φ = 1973760.

The previous prime is 1973749. The next prime is 1973779. The reversal of 1973761 is 1673791.

It is a happy number.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 1742400 + 231361 = 1320^2 + 481^2 .

It is a cyclic number.

It is not a de Polignac number, because 1973761 - 2⁷ = 1973633 is a prime.

It is an Ulam number.

It is not a weakly prime, because it can be changed into another prime (1973731) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 986880 + 986881.

It is an arithmetic number, because the mean of its divisors is an integer number (986881).

2^1973761 is an apocalyptic number.

It is an amenable number.

1973761 is a deficient number, since it is larger than the sum of its proper divisors (1).

1973761 is an equidigital number, since it uses as much as digits as its factorization.

1973761 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 7938, while the sum is 34.

The square root of 1973761 is about 1404.9060466807. The cubic root of 1973761 is about 125.4386932514.

The spelling of 1973761 in words is "one million, nine hundred seventy-three thousand, seven hundred sixty-one".