609894 has 24 divisors (see below), whose sum is σ = 1365312. Its totient is φ = 196560.

The previous prime is 609887. The next prime is 609907. The reversal of 609894 is 498906.

609894 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a Curzon number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 12 + ... + 1104.

It is an arithmetic number, because the mean of its divisors is an integer number (56888).

2⁶⁰⁹⁸⁹⁴ is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 609894, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (682656).

609894 is an abundant number, since it is smaller than the sum of its proper divisors (755418).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

609894 is a wasteful number, since it uses less digits than its factorization.

609894 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1132 (or 1129 counting only the distinct ones).

The product of its (nonzero) digits is 15552, while the sum is 36.

The square root of 609894 is about 780.9571050960. The cubic root of 609894 is about 84.8043481513.

It can be divided in two parts, 609 and 894, that multiplied together give a triangular number (544446 = T₁₀₄₃).

The spelling of 609894 in words is "six hundred nine thousand, eight hundred ninety-four".