605660994 has 12 divisors (see below), whose sum is σ = 1312265526. Its totient is φ = 201886992.

The previous prime is 605660983. The next prime is 605661037. The reversal of 605660994 is 499066506.

It can be written as a sum of positive squares in only one way, i.e., 604422225 + 1238769 = 24585^2 + 1113^2 .

It is a Smith number, since the sum of its digits (45) coincides with the sum of the digits of its prime factors.

It is a Curzon number.

It is an unprimeable number.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 16823899 + ... + 16823934.

Almost surely, 2^605660994 is an apocalyptic number.

605660994 is an abundant number, since it is smaller than the sum of its proper divisors (706604532).

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

605660994 is a wasteful number, since it uses less digits than its factorization.

605660994 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 33647841 (or 33647838 counting only the distinct ones).

The product of its (nonzero) digits is 349920, while the sum is 45.

The square root of 605660994 is about 24610.1806982395. The cubic root of 605660994 is about 846.0769592816.

The spelling of 605660994 in words is "six hundred five million, six hundred sixty thousand, nine hundred ninety-four".