1969633 has 2 divisors, whose sum is σ = 1969634. Its totient is φ = 1969632.

The previous prime is 1969619. The next prime is 1969657. The reversal of 1969633 is 3369691.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 1617984 + 351649 = 1272^2 + 593^2 .

It is a cyclic number.

It is not a de Polignac number, because 1969633 - 2¹³ = 1961441 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 1969592 and 1969601.

It is not a weakly prime, because it can be changed into another prime (1961633) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 984816 + 984817.

It is an arithmetic number, because the mean of its divisors is an integer number (984817).

2^1969633 is an apocalyptic number.

It is an amenable number.

1969633 is a deficient number, since it is larger than the sum of its proper divisors (1).

1969633 is an equidigital number, since it uses as much as digits as its factorization.

1969633 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 26244, while the sum is 37.

The square root of 1969633 is about 1403.4361403356. The cubic root of 1969633 is about 125.3511831061.

The spelling of 1969633 in words is "one million, nine hundred sixty-nine thousand, six hundred thirty-three".