613489517 has 4 divisors (see below), whose sum is σ = 616701696. Its totient is φ = 610277340.

The previous prime is 613489477. The next prime is 613489531. The reversal of 613489517 is 715984316.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 613489517 - 2¹² = 613485421 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 (613489567) 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, 1605803 + ... + 1606184.

It is an arithmetic number, because the mean of its divisors is an integer number (154175424).

Almost surely, 2^613489517 is an apocalyptic number.

It is an amenable number.

613489517 is a deficient number, since it is larger than the sum of its proper divisors (3212179).

613489517 is a wasteful number, since it uses less digits than its factorization.

613489517 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3212178.

The product of its digits is 181440, while the sum is 44.

The square root of 613489517 is about 24768.7205361924. The cubic root of 613489517 is about 849.7067117321.

The spelling of 613489517 in words is "six hundred thirteen million, four hundred eighty-nine thousand, five hundred seventeen".