1608988427 has 2 divisors, whose sum is σ = 1608988428. Its totient is φ = 1608988426.

The previous prime is 1608988331. The next prime is 1608988429. The reversal of 1608988427 is 7248898061.

It is a happy number.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 1608988427 - 2²⁸ = 1340552971 is a prime.

Together with 1608988429, it forms a pair of twin primes.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (1608988429) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 804494213 + 804494214.

It is an arithmetic number, because the mean of its divisors is an integer number (804494214).

Almost surely, 2^1608988427 is an apocalyptic number.

1608988427 is a deficient number, since it is larger than the sum of its proper divisors (1).

1608988427 is an equidigital number, since it uses as much as digits as its factorization.

1608988427 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 1548288, while the sum is 53.

The square root of 1608988427 is about 40112.1979826586. The cubic root of 1608988427 is about 1171.7932000380.

The spelling of 1608988427 in words is "one billion, six hundred eight million, nine hundred eighty-eight thousand, four hundred twenty-seven".