613187663 has 8 divisors (see below), whose sum is σ = 678096336. Its totient is φ = 549806400.

The previous prime is 613187647. The next prime is 613187681. The reversal of 613187663 is 366781316.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 613187663 - 2⁴ = 613187647 is a prime.

It is a super-2 number, since 2×613187663² = 751998220110803138, which contains 22 as substring.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 613187663.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (613187693) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 381008 + ... + 382613.

It is an arithmetic number, because the mean of its divisors is an integer number (84762042).

Almost surely, 2^613187663 is an apocalyptic number.

613187663 is a deficient number, since it is larger than the sum of its proper divisors (64908673).

613187663 is a wasteful number, since it uses less digits than its factorization.

613187663 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 763705.

The product of its digits is 108864, while the sum is 41.

The square root of 613187663 is about 24762.6263348620. The cubic root of 613187663 is about 849.5673290475.

The spelling of 613187663 in words is "six hundred thirteen million, one hundred eighty-seven thousand, six hundred sixty-three".