1609463 has 4 divisors (see below), whose sum is σ = 1653000. Its totient is φ = 1565928.

The previous prime is 1609457. The next prime is 1609477. The reversal of 1609463 is 3649061.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 3649061 = 13 ⋅280697.

It is a cyclic number.

It is not a de Polignac number, because 1609463 - 2²⁰ = 560887 is a prime.

It is a super-2 number, since 2×1609463² = 5180742296738, which contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1609403) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 21713 + ... + 21786.

It is an arithmetic number, because the mean of its divisors is an integer number (413250).

2^1609463 is an apocalyptic number.

1609463 is a deficient number, since it is larger than the sum of its proper divisors (43537).

1609463 is an equidigital number, since it uses as much as digits as its factorization.

1609463 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 43536.

The product of its (nonzero) digits is 3888, while the sum is 29.

The square root of 1609463 is about 1268.6461287530. The cubic root of 1609463 is about 117.1908395967.

The spelling of 1609463 in words is "one million, six hundred nine thousand, four hundred sixty-three".