61673713 has 2 divisors, whose sum is σ = 61673714. Its totient is φ = 61673712.

The previous prime is 61673699. The next prime is 61673719. The reversal of 61673713 is 31737616.

It is a happy number.

61673713 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 42419169 + 19254544 = 6513^2 + 4388^2 .

It is a cyclic number.

It is not a de Polignac number, because 61673713 - 2⁵ = 61673681 is a prime.

It is not a weakly prime, because it can be changed into another prime (61673719) 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 as a sum of consecutive naturals, namely, 30836856 + 30836857.

It is an arithmetic number, because the mean of its divisors is an integer number (30836857).

Almost surely, 2^61673713 is an apocalyptic number.

It is an amenable number.

61673713 is a deficient number, since it is larger than the sum of its proper divisors (1).

61673713 is an equidigital number, since it uses as much as digits as its factorization.

61673713 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 15876, while the sum is 34.

The square root of 61673713 is about 7853.2612970663. The cubic root of 61673713 is about 395.0936337338.

The spelling of 61673713 in words is "sixty-one million, six hundred seventy-three thousand, seven hundred thirteen".