61968373 has 2 divisors, whose sum is σ = 61968374. Its totient is φ = 61968372.

The previous prime is 61968341. The next prime is 61968397. The reversal of 61968373 is 37386916.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 47238129 + 14730244 = 6873^2 + 3838^2 .

It is a cyclic number.

It is not a de Polignac number, because 61968373 - 2⁵ = 61968341 is a prime.

It is a super-3 number, since 3×61968373³ (a number of 24 digits) contains 333 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (61968073) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 30984186 + 30984187.

It is an arithmetic number, because the mean of its divisors is an integer number (30984187).

Almost surely, 2^61968373 is an apocalyptic number.

It is an amenable number.

61968373 is a deficient number, since it is larger than the sum of its proper divisors (1).

61968373 is an equidigital number, since it uses as much as digits as its factorization.

61968373 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 163296, while the sum is 43.

The square root of 61968373 is about 7871.9993013211. Note that the first 3 decimals coincide. The cubic root of 61968373 is about 395.7218504688.

The spelling of 61968373 in words is "sixty-one million, nine hundred sixty-eight thousand, three hundred seventy-three".