1972846349 has 2 divisors, whose sum is σ = 1972846350. Its totient is φ = 1972846348.

The previous prime is 1972846319. The next prime is 1972846373. The reversal of 1972846349 is 9436482791.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 1694557225 + 278289124 = 41165^2 + 16682^2 .

It is a cyclic number.

It is not a de Polignac number, because 1972846349 - 2⁸ = 1972846093 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 1972846349.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (1972846319) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 986423174 + 986423175.

It is an arithmetic number, because the mean of its divisors is an integer number (986423175).

Almost surely, 2^1972846349 is an apocalyptic number.

It is an amenable number.

1972846349 is a deficient number, since it is larger than the sum of its proper divisors (1).

1972846349 is an equidigital number, since it uses as much as digits as its factorization.

1972846349 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 2612736, while the sum is 53.

The square root of 1972846349 is about 44416.7350105791. The cubic root of 1972846349 is about 1254.1931394571.

The spelling of 1972846349 in words is "one billion, nine hundred seventy-two million, eight hundred forty-six thousand, three hundred forty-nine".