613399647 has 16 divisors (see below), whose sum is σ = 957503232. Its totient is φ = 341964480.

The previous prime is 613399643. The next prime is 613399669. The reversal of 613399647 is 746993316.

It is not a de Polignac number, because 613399647 - 2² = 613399643 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 613399596 and 613399605.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (613399643) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 355353 + ... + 357074.

It is an arithmetic number, because the mean of its divisors is an integer number (59843952).

Almost surely, 2^613399647 is an apocalyptic number.

613399647 is a deficient number, since it is larger than the sum of its proper divisors (344103585).

613399647 is a wasteful number, since it uses less digits than its factorization.

613399647 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 712478.

The product of its digits is 734832, while the sum is 48.

The square root of 613399647 is about 24766.9062864137. The cubic root of 613399647 is about 849.6652185638.

The spelling of 613399647 in words is "six hundred thirteen million, three hundred ninety-nine thousand, six hundred forty-seven".