1609601 has 12 divisors (see below), whose sum is σ = 1896048. Its totient is φ = 1362312.

The previous prime is 1609589. The next prime is 1609627. The reversal of 1609601 is 1069061.

It is not a de Polignac number, because 1609601 - 2¹⁰ = 1608577 is a prime.

It is not an unprimeable number, because it can be changed into a prime (1609631) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 5090 + ... + 5396.

It is an arithmetic number, because the mean of its divisors is an integer number (158004).

2^1609601 is an apocalyptic number.

It is an amenable number.

1609601 is a deficient number, since it is larger than the sum of its proper divisors (286447).

1609601 is a wasteful number, since it uses less digits than its factorization.

1609601 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 428 (or 421 counting only the distinct ones).

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

The square root of 1609601 is about 1268.7005162764. The cubic root of 1609601 is about 117.1941889278.

The spelling of 1609601 in words is "one million, six hundred nine thousand, six hundred one".