1980683593 has 8 divisors (see below), whose sum is σ = 2324818112. Its totient is φ = 1651844016.

The previous prime is 1980683569. The next prime is 1980683597. The reversal of 1980683593 is 3953860891.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-1980683593 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 1980683593.

It is not an unprimeable number, because it can be changed into a prime (1980683597) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 3823455 + ... + 3823972.

It is an arithmetic number, because the mean of its divisors is an integer number (290602264).

Almost surely, 2^1980683593 is an apocalyptic number.

It is an amenable number.

1980683593 is a deficient number, since it is larger than the sum of its proper divisors (344134519).

1980683593 is an equidigital number, since it uses as much as digits as its factorization.

1980683593 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7647471.

The product of its (nonzero) digits is 1399680, while the sum is 52.

The square root of 1980683593 is about 44504.8715648074. The cubic root of 1980683593 is about 1255.8517295679.

The spelling of 1980683593 in words is "one billion, nine hundred eighty million, six hundred eighty-three thousand, five hundred ninety-three".