1640359883 has 2 divisors, whose sum is σ = 1640359884. Its totient is φ = 1640359882.

The previous prime is 1640359879. The next prime is 1640359891. The reversal of 1640359883 is 3889530461.

It is a weak prime.

It is an emirp because it is prime and its reverse (3889530461) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 1640359883 - 2² = 1640359879 is a prime.

It is not a weakly prime, because it can be changed into another prime (1640329883) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 820179941 + 820179942.

It is an arithmetic number, because the mean of its divisors is an integer number (820179942).

Almost surely, 2^1640359883 is an apocalyptic number.

1640359883 is a deficient number, since it is larger than the sum of its proper divisors (1).

1640359883 is an equidigital number, since it uses as much as digits as its factorization.

1640359883 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 622080, while the sum is 47.

The square root of 1640359883 is about 40501.3565575278. The cubic root of 1640359883 is about 1179.3599619616.

The spelling of 1640359883 in words is "one billion, six hundred forty million, three hundred fifty-nine thousand, eight hundred eighty-three".