1610609 has 16 divisors (see below), whose sum is σ = 2163840. Its totient is φ = 1157760.

The previous prime is 1610591. The next prime is 1610627. The reversal of 1610609 is 9060161.

It is an interprime number because it is at equal distance from previous prime (1610591) and next prime (1610627).

It is a cyclic number.

It is not a de Polignac number, because 1610609 - 2⁸ = 1610353 is a prime.

It is a super-2 number, since 2×1610609² = 5188122701762, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (1610639) 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, 197 + ... + 1805.

It is an arithmetic number, because the mean of its divisors is an integer number (135240).

2^1610609 is an apocalyptic number.

It is an amenable number.

1610609 is a deficient number, since it is larger than the sum of its proper divisors (553231).

1610609 is a wasteful number, since it uses less digits than its factorization.

1610609 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1640.

The product of its (nonzero) digits is 324, while the sum is 23.

The square root of 1610609 is about 1269.0977109742. The cubic root of 1610609 is about 117.2186478033.

It can be divided in two parts, 16 and 10609, that multiplied together give a square (169744 = 412²).

The spelling of 1610609 in words is "one million, six hundred ten thousand, six hundred nine".