613671955 has 24 divisors (see below), whose sum is σ = 805738752. Its totient is φ = 448441344.

The previous prime is 613671953. The next prime is 613671959. The reversal of 613671955 is 559176316.

It is a happy number.

It is not a de Polignac number, because 613671955 - 2¹ = 613671953 is a prime.

It is not an unprimeable number, because it can be changed into a prime (613671953) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 78222 + ... + 85708.

It is an arithmetic number, because the mean of its divisors is an integer number (33572448).

Almost surely, 2^613671955 is an apocalyptic number.

613671955 is a gapful number since it is divisible by the number (65) formed by its first and last digit.

613671955 is a deficient number, since it is larger than the sum of its proper divisors (192066797).

613671955 is a wasteful number, since it uses less digits than its factorization.

613671955 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7615 (or 7602 counting only the distinct ones).

The product of its digits is 170100, while the sum is 43.

The square root of 613671955 is about 24772.4030929581. The cubic root of 613671955 is about 849.7909312800.

The spelling of 613671955 in words is "six hundred thirteen million, six hundred seventy-one thousand, nine hundred fifty-five".