613607863 has 4 divisors (see below), whose sum is σ = 669390408. Its totient is φ = 557825320.

The previous prime is 613607837. The next prime is 613607867. The reversal of 613607863 is 368706316.

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-613607863 is a prime.

It is a Smith number, since the sum of its digits (40) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (613607867) 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, 27891256 + ... + 27891277.

It is an arithmetic number, because the mean of its divisors is an integer number (167347602).

Almost surely, 2^613607863 is an apocalyptic number.

613607863 is a deficient number, since it is larger than the sum of its proper divisors (55782545).

613607863 is a wasteful number, since it uses less digits than its factorization.

613607863 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 55782544.

The product of its (nonzero) digits is 108864, while the sum is 40.

The square root of 613607863 is about 24771.1094422515. The cubic root of 613607863 is about 849.7613461484.

The spelling of 613607863 in words is "six hundred thirteen million, six hundred seven thousand, eight hundred sixty-three".