1962920689 has 4 divisors (see below), whose sum is σ = 1967292900. Its totient is φ = 1958548480.

The previous prime is 1962920683. The next prime is 1962920693. The reversal of 1962920689 is 9860292691.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 738480625 + 1224440064 = 27175^2 + 34992^2 .

It is a cyclic number.

It is not a de Polignac number, because 1962920689 - 2³ = 1962920681 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (1962920681) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 2185432 + ... + 2186329.

It is an arithmetic number, because the mean of its divisors is an integer number (491823225).

Almost surely, 2^1962920689 is an apocalyptic number.

It is an amenable number.

1962920689 is a deficient number, since it is larger than the sum of its proper divisors (4372211).

1962920689 is an equidigital number, since it uses as much as digits as its factorization.

1962920689 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4372210.

The product of its (nonzero) digits is 839808, while the sum is 52.

The square root of 1962920689 is about 44304.8607829886. The cubic root of 1962920689 is about 1252.0862630547.

The spelling of 1962920689 in words is "one billion, nine hundred sixty-two million, nine hundred twenty thousand, six hundred eighty-nine".