613781204 has 12 divisors (see below), whose sum is σ = 1076512500. Its totient is φ = 306206208.

The previous prime is 613781191. The next prime is 613781219. The reversal of 613781204 is 402187316.

It can be written as a sum of positive squares in 2 ways, for example, as 506700100 + 107081104 = 22510^2 + 10348^2 .

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 169079 + ... + 172670.

It is an arithmetic number, because the mean of its divisors is an integer number (89709375).

Almost surely, 2^613781204 is an apocalyptic number.

It is an amenable number.

613781204 is a deficient number, since it is larger than the sum of its proper divisors (462731296).

613781204 is a wasteful number, since it uses less digits than its factorization.

613781204 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 342202 (or 342200 counting only the distinct ones).

The product of its (nonzero) digits is 8064, while the sum is 32.

The square root of 613781204 is about 24774.6080493718. The cubic root of 613781204 is about 849.8413563211.

The spelling of 613781204 in words is "six hundred thirteen million, seven hundred eighty-one thousand, two hundred four".