1983485377 has 2 divisors, whose sum is σ = 1983485378. Its totient is φ = 1983485376.

The previous prime is 1983485359. The next prime is 1983485407. The reversal of 1983485377 is 7735843891.

It is a happy number.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 1866326401 + 117158976 = 43201^2 + 10824^2 .

It is an emirp because it is prime and its reverse (7735843891) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 1983485377 - 2¹¹ = 1983483329 is a prime.

It is not a weakly prime, because it can be changed into another prime (1983482377) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 991742688 + 991742689.

It is an arithmetic number, because the mean of its divisors is an integer number (991742689).

Almost surely, 2^1983485377 is an apocalyptic number.

It is an amenable number.

1983485377 is a deficient number, since it is larger than the sum of its proper divisors (1).

1983485377 is an equidigital number, since it uses as much as digits as its factorization.

1983485377 is an evil number, because the sum of its binary digits is even.

The product of its digits is 5080320, while the sum is 55.

The square root of 1983485377 is about 44536.3377142755. The cubic root of 1983485377 is about 1256.4436072917.

The spelling of 1983485377 in words is "one billion, nine hundred eighty-three million, four hundred eighty-five thousand, three hundred seventy-seven".