1606616 has 16 divisors (see below), whose sum is σ = 3286440. Its totient is φ = 730240.

The previous prime is 1606603. The next prime is 1606639. The reversal of 1606616 is 6166061.

It is an Ulam number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 9041 + ... + 9216.

2^1606616 is an apocalyptic number.

It is an amenable number.

1606616 is an abundant number, since it is smaller than the sum of its proper divisors (1679824).

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

1606616 is a wasteful number, since it uses less digits than its factorization.

1606616 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 18274 (or 18270 counting only the distinct ones).

The product of its (nonzero) digits is 1296, while the sum is 26.

The square root of 1606616 is about 1267.5235698006. The cubic root of 1606616 is about 117.1216986799.

It can be divided in two parts, 160661 and 6, that multiplied together give a triangular number (963966 = T₁₃₈₈).

The spelling of 1606616 in words is "one million, six hundred six thousand, six hundred sixteen".