609791 has 8 divisors (see below), whose sum is σ = 750624. Its totient is φ = 482400.

The previous prime is 609781. The next prime is 609803. The reversal of 609791 is 197906.

609791 = T₈₄ + T₈₅ + ... + T₁₆₁.

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

It is a cyclic number.

It is not a de Polignac number, because 609791 - 2¹⁰ = 608767 is a prime.

It is a plaindrome in base 8.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (609701) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 3260 + ... + 3441.

It is an arithmetic number, because the mean of its divisors is an integer number (93828).

2⁶⁰⁹⁷⁹¹ is an apocalyptic number.

609791 is a deficient number, since it is larger than the sum of its proper divisors (140833).

609791 is a wasteful number, since it uses less digits than its factorization.

609791 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6721.

The product of its (nonzero) digits is 3402, while the sum is 32.

The square root of 609791 is about 780.8911575886. The cubic root of 609791 is about 84.7995739121.

The spelling of 609791 in words is "six hundred nine thousand, seven hundred ninety-one".