1609896959 has 16 divisors (see below), whose sum is σ = 1783814400. Its totient is φ = 1440653760.

The previous prime is 1609896887. The next prime is 1609896979. The reversal of 1609896959 is 9596989061.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-1609896959 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 (1609896979) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 479324 + ... + 482670.

It is an arithmetic number, because the mean of its divisors is an integer number (111488400).

Almost surely, 2^1609896959 is an apocalyptic number.

1609896959 is a deficient number, since it is larger than the sum of its proper divisors (173917441).

1609896959 is a wasteful number, since it uses less digits than its factorization.

1609896959 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4030.

The product of its (nonzero) digits is 9447840, while the sum is 62.

The square root of 1609896959 is about 40123.5212687022. The cubic root of 1609896959 is about 1172.0137135986.

The spelling of 1609896959 in words is "one billion, six hundred nine million, eight hundred ninety-six thousand, nine hundred fifty-nine".