1608738 has 8 divisors (see below), whose sum is σ = 3217488. Its totient is φ = 536244.

The previous prime is 1608713. The next prime is 1608743. The reversal of 1608738 is 8378061.

It is a sphenic number, since it is the product of 3 distinct primes.

1608738 is an admirable number.

It is a Curzon number.

It is a nialpdrome in base 13.

It is a junction number, because it is equal to n+sod(n) for n = 1608699 and 1608708.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (7) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 134056 + ... + 134067.

It is an arithmetic number, because the mean of its divisors is an integer number (402186).

2^1608738 is an apocalyptic number.

1608738 is a primitive abundant number, since it is smaller than the sum of its proper divisors, none of which is abundant.

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

1608738 is a wasteful number, since it uses less digits than its factorization.

1608738 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 268128.

The product of its (nonzero) digits is 8064, while the sum is 33.

The square root of 1608738 is about 1268.3603588886. The cubic root of 1608738 is about 117.1732403271.

It can be divided in two parts, 1608 and 738, that added together give a triangular number (2346 = T₆₈).

The spelling of 1608738 in words is "one million, six hundred eight thousand, seven hundred thirty-eight".