1608959879 has 4 divisors (see below), whose sum is σ = 1623198576. Its totient is φ = 1594721184.

The previous prime is 1608959867. The next prime is 1608959893. The reversal of 1608959879 is 9789598061.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 9789598061 = 3947 ⋅2480263.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-1608959879 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1608959809) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 7119179 + ... + 7119404.

It is an arithmetic number, because the mean of its divisors is an integer number (405799644).

Almost surely, 2^1608959879 is an apocalyptic number.

1608959879 is a deficient number, since it is larger than the sum of its proper divisors (14238697).

1608959879 is a wasteful number, since it uses less digits than its factorization.

1608959879 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 14238696.

The product of its (nonzero) digits is 9797760, while the sum is 62.

The square root of 1608959879 is about 40111.8421292266. The cubic root of 1608959879 is about 1171.7862696898.

The spelling of 1608959879 in words is "one billion, six hundred eight million, nine hundred fifty-nine thousand, eight hundred seventy-nine".