1952689 has 2 divisors, whose sum is σ = 1952690. Its totient is φ = 1952688.

The previous prime is 1952663. The next prime is 1952693. The reversal of 1952689 is 9862591.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 1912689 + 40000 = 1383^2 + 200^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-1952689 is a prime.

1952689 is a lucky number.

It is not a weakly prime, because it can be changed into another prime (1952089) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 976344 + 976345.

It is an arithmetic number, because the mean of its divisors is an integer number (976345).

2^1952689 is an apocalyptic number.

It is an amenable number.

1952689 is a deficient number, since it is larger than the sum of its proper divisors (1).

1952689 is an equidigital number, since it uses as much as digits as its factorization.

1952689 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 38880, while the sum is 40.

The square root of 1952689 is about 1397.3864891289. The cubic root of 1952689 is about 124.9906979745.

The spelling of 1952689 in words is "one million, nine hundred fifty-two thousand, six hundred eighty-nine".