613363973 has 2 divisors, whose sum is σ = 613363974. Its totient is φ = 613363972.

The previous prime is 613363957. The next prime is 613363981. The reversal of 613363973 is 379363316.

It is a happy number.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 611919169 + 1444804 = 24737^2 + 1202^2 .

It is a cyclic number.

It is not a de Polignac number, because 613363973 - 2⁴ = 613363957 is a prime.

It is a Sophie Germain prime.

It is a Curzon number.

It is a self number, because there is not a number n which added to its sum of digits gives 613363973.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (613363903) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 306681986 + 306681987.

It is an arithmetic number, because the mean of its divisors is an integer number (306681987).

Almost surely, 2^613363973 is an apocalyptic number.

It is an amenable number.

613363973 is a deficient number, since it is larger than the sum of its proper divisors (1).

613363973 is an equidigital number, since it uses as much as digits as its factorization.

613363973 is an evil number, because the sum of its binary digits is even.

The product of its digits is 183708, while the sum is 41.

The square root of 613363973 is about 24766.1860810259. The cubic root of 613363973 is about 849.6487466792.

The spelling of 613363973 in words is "six hundred thirteen million, three hundred sixty-three thousand, nine hundred seventy-three".