1996458539 has 2 divisors, whose sum is σ = 1996458540. Its totient is φ = 1996458538.

The previous prime is 1996458523. The next prime is 1996458547. The reversal of 1996458539 is 9358546991.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 1996458539 - 2⁴ = 1996458523 is a prime.

It is not a weakly prime, because it can be changed into another prime (1996458509) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 998229269 + 998229270.

It is an arithmetic number, because the mean of its divisors is an integer number (998229270).

Almost surely, 2^1996458539 is an apocalyptic number.

1996458539 is a deficient number, since it is larger than the sum of its proper divisors (1).

1996458539 is an equidigital number, since it uses as much as digits as its factorization.

1996458539 is an evil number, because the sum of its binary digits is even.

The product of its digits is 10497600, while the sum is 59.

The square root of 1996458539 is about 44681.7472688793. The cubic root of 1996458539 is about 1259.1769503117.

The spelling of 1996458539 in words is "one billion, nine hundred ninety-six million, four hundred fifty-eight thousand, five hundred thirty-nine".