1607609 has 8 divisors (see below), whose sum is σ = 1704480. Its totient is φ = 1512000.

The previous prime is 1607603. The next prime is 1607611. The reversal of 1607609 is 9067061.

It is a happy number.

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

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-1607609 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (1607603) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 3809 + ... + 4209.

It is an arithmetic number, because the mean of its divisors is an integer number (213060).

2^1607609 is an apocalyptic number.

1607609 is a gapful number since it is divisible by the number (19) formed by its first and last digit.

It is an amenable number.

1607609 is a deficient number, since it is larger than the sum of its proper divisors (96871).

1607609 is a wasteful number, since it uses less digits than its factorization.

1607609 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 631.

The product of its (nonzero) digits is 2268, while the sum is 29.

The square root of 1607609 is about 1267.9152179858. The cubic root of 1607609 is about 117.1458234851.

The spelling of 1607609 in words is "one million, six hundred seven thousand, six hundred nine".