613430647 has 4 divisors (see below), whose sum is σ = 627696520. Its totient is φ = 599164776.

The previous prime is 613430641. The next prime is 613430683. The reversal of 613430647 is 746034316.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-613430647 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (613430641) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 7132872 + ... + 7132957.

It is an arithmetic number, because the mean of its divisors is an integer number (156924130).

Almost surely, 2^613430647 is an apocalyptic number.

613430647 is a deficient number, since it is larger than the sum of its proper divisors (14265873).

613430647 is a wasteful number, since it uses less digits than its factorization.

613430647 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 14265872.

The product of its (nonzero) digits is 36288, while the sum is 34.

The square root of 613430647 is about 24767.5321136362. The cubic root of 613430647 is about 849.6795317870.

The spelling of 613430647 in words is "six hundred thirteen million, four hundred thirty thousand, six hundred forty-seven".