61875917 has 2 divisors, whose sum is σ = 61875918. Its totient is φ = 61875916.

The previous prime is 61875901. The next prime is 61875943. The reversal of 61875917 is 71957816.

61875917 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 36735721 + 25140196 = 6061^2 + 5014^2 .

It is a cyclic number.

It is not a de Polignac number, because 61875917 - 2⁴ = 61875901 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (61875967) 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, 30937958 + 30937959.

It is an arithmetic number, because the mean of its divisors is an integer number (30937959).

Almost surely, 2^61875917 is an apocalyptic number.

It is an amenable number.

61875917 is a deficient number, since it is larger than the sum of its proper divisors (1).

61875917 is an equidigital number, since it uses as much as digits as its factorization.

61875917 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 105840, while the sum is 44.

The square root of 61875917 is about 7866.1246494065. The cubic root of 61875917 is about 395.5249485738.

The spelling of 61875917 in words is "sixty-one million, eight hundred seventy-five thousand, nine hundred seventeen".