609801 has 16 divisors (see below), whose sum is σ = 860160. Its totient is φ = 383760.

The previous prime is 609781. The next prime is 609803. The reversal of 609801 is 108906.

It is not a de Polignac number, because 609801 - 2⁷ = 609673 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (609803) 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, 7306 + ... + 7388.

It is an arithmetic number, because the mean of its divisors is an integer number (53760).

2⁶⁰⁹⁸⁰¹ is an apocalyptic number.

It is an amenable number.

609801 is a deficient number, since it is larger than the sum of its proper divisors (250359).

609801 is a wasteful number, since it uses less digits than its factorization.

609801 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 196.

The product of its (nonzero) digits is 432, while the sum is 24.

The square root of 609801 is about 780.8975605033. The cubic root of 609801 is about 84.8000374540.

The spelling of 609801 in words is "six hundred nine thousand, eight hundred one".