1988412983 has 2 divisors, whose sum is σ = 1988412984. Its totient is φ = 1988412982.

The previous prime is 1988412977. The next prime is 1988413073. The reversal of 1988412983 is 3892148891.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 1988412983 - 2⁶ = 1988412919 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (1988412953) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 994206491 + 994206492.

It is an arithmetic number, because the mean of its divisors is an integer number (994206492).

Almost surely, 2^1988412983 is an apocalyptic number.

1988412983 is a deficient number, since it is larger than the sum of its proper divisors (1).

1988412983 is an equidigital number, since it uses as much as digits as its factorization.

1988412983 is an evil number, because the sum of its binary digits is even.

The product of its digits is 995328, while the sum is 53.

The square root of 1988412983 is about 44591.6245835471. The cubic root of 1988412983 is about 1257.4832148394.

The spelling of 1988412983 in words is "one billion, nine hundred eighty-eight million, four hundred twelve thousand, nine hundred eighty-three".