1992604259 has 2 divisors, whose sum is σ = 1992604260. Its totient is φ = 1992604258.

The previous prime is 1992604247. The next prime is 1992604283. The reversal of 1992604259 is 9524062991.

It is a happy number.

It is a weak prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-1992604259 is a prime.

It is not a weakly prime, because it can be changed into another prime (1992604759) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 996302129 + 996302130.

It is an arithmetic number, because the mean of its divisors is an integer number (996302130).

Almost surely, 2^1992604259 is an apocalyptic number.

1992604259 is a deficient number, since it is larger than the sum of its proper divisors (1).

1992604259 is an equidigital number, since it uses as much as digits as its factorization.

1992604259 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 349920, while the sum is 47.

The square root of 1992604259 is about 44638.5960688730. The cubic root of 1992604259 is about 1258.3661233838.

The spelling of 1992604259 in words is "one billion, nine hundred ninety-two million, six hundred four thousand, two hundred fifty-nine".