613798761 has 4 divisors (see below), whose sum is σ = 818398352. Its totient is φ = 409199172.

The previous prime is 613798721. The next prime is 613798793. The reversal of 613798761 is 167897316.

It is a happy number.

613798761 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

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 not a de Polignac number, because 613798761 - 2¹⁷ = 613667689 is a prime.

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 613798761.

It is not an unprimeable number, because it can be changed into a prime (613798721) 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, 102299791 + ... + 102299796.

It is an arithmetic number, because the mean of its divisors is an integer number (204599588).

Almost surely, 2^613798761 is an apocalyptic number.

It is an amenable number.

613798761 is a deficient number, since it is larger than the sum of its proper divisors (204599591).

613798761 is a wasteful number, since it uses less digits than its factorization.

613798761 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 204599590.

The product of its digits is 381024, while the sum is 48.

The square root of 613798761 is about 24774.9623814043. The cubic root of 613798761 is about 849.8494593837.

The spelling of 613798761 in words is "six hundred thirteen million, seven hundred ninety-eight thousand, seven hundred sixty-one".