1609347 has 4 divisors (see below), whose sum is σ = 2145800. Its totient is φ = 1072896.

The previous prime is 1609301. The next prime is 1609367. The reversal of 1609347 is 7439061.

It is a happy number.

It is a semiprime because it is the product of two primes.

It is not a de Polignac number, because 1609347 - 2⁷ = 1609219 is a prime.

It is a D-number.

It is a Duffinian number.

It is a plaindrome in base 13.

It is not an unprimeable number, because it can be changed into a prime (1609367) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 268222 + ... + 268227.

It is an arithmetic number, because the mean of its divisors is an integer number (536450).

2^1609347 is an apocalyptic number.

1609347 is a deficient number, since it is larger than the sum of its proper divisors (536453).

1609347 is an equidigital number, since it uses as much as digits as its factorization.

1609347 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 536452.

The product of its (nonzero) digits is 4536, while the sum is 30.

The square root of 1609347 is about 1268.6004099006. The cubic root of 1609347 is about 117.1880240688.

The spelling of 1609347 in words is "one million, six hundred nine thousand, three hundred forty-seven".