1972361 has 2 divisors, whose sum is σ = 1972362. Its totient is φ = 1972360.

The previous prime is 1972349. The next prime is 1972379. The reversal of 1972361 is 1632791.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 1394761 + 577600 = 1181^2 + 760^2 .

It is a cyclic number.

It is not a de Polignac number, because 1972361 - 2⁶ = 1972297 is a prime.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (1972381) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 986180 + 986181.

It is an arithmetic number, because the mean of its divisors is an integer number (986181).

2^1972361 is an apocalyptic number.

It is an amenable number.

1972361 is a deficient number, since it is larger than the sum of its proper divisors (1).

1972361 is an equidigital number, since it uses as much as digits as its factorization.

1972361 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 2268, while the sum is 29.

The square root of 1972361 is about 1404.4077043366. The cubic root of 1972361 is about 125.4090281082.

The spelling of 1972361 in words is "one million, nine hundred seventy-two thousand, three hundred sixty-one".