1608298643 has 16 divisors (see below), whose sum is σ = 1937118720. Its totient is φ = 1304418816.

The previous prime is 1608298613. The next prime is 1608298691. The reversal of 1608298643 is 3468928061.

It is a cyclic number.

It is not a de Polignac number, because 1608298643 - 2¹² = 1608294547 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (1608298613) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 111155 + ... + 124787.

It is an arithmetic number, because the mean of its divisors is an integer number (121069920).

Almost surely, 2^1608298643 is an apocalyptic number.

1608298643 is a deficient number, since it is larger than the sum of its proper divisors (328820077).

1608298643 is a wasteful number, since it uses less digits than its factorization.

1608298643 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 14546.

The product of its (nonzero) digits is 497664, while the sum is 47.

The square root of 1608298643 is about 40103.5988784049. The cubic root of 1608298643 is about 1171.6257242666.

The spelling of 1608298643 in words is "one billion, six hundred eight million, two hundred ninety-eight thousand, six hundred forty-three".