609783894 has 24 divisors (see below), whose sum is σ = 1322496552. Its totient is φ = 203061600.

The previous prime is 609783893. The next prime is 609783917. The reversal of 609783894 is 498387906.

It is a self number, because there is not a number n which added to its sum of digits gives 609783894.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (609783893) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 2802 + ... + 35034.

It is an arithmetic number, because the mean of its divisors is an integer number (55104023).

Almost surely, 2^609783894 is an apocalyptic number.

609783894 is an abundant number, since it is smaller than the sum of its proper divisors (712712658).

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

609783894 is a wasteful number, since it uses less digits than its factorization.

609783894 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 33292 (or 33289 counting only the distinct ones).

The product of its (nonzero) digits is 2612736, while the sum is 54.

The square root of 609783894 is about 24693.8027448184. The cubic root of 609783894 is about 847.9924451608.

The spelling of 609783894 in words is "six hundred nine million, seven hundred eighty-three thousand, eight hundred ninety-four".