61871027 has 2 divisors, whose sum is σ = 61871028. Its totient is φ = 61871026.

The previous prime is 61871021. The next prime is 61871039. The reversal of 61871027 is 72017816.

61871027 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 is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-61871027 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 61870984 and 61871002.

It is not a weakly prime, because it can be changed into another prime (61871021) 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, 30935513 + 30935514.

It is an arithmetic number, because the mean of its divisors is an integer number (30935514).

Almost surely, 2^61871027 is an apocalyptic number.

61871027 is a deficient number, since it is larger than the sum of its proper divisors (1).

61871027 is an equidigital number, since it uses as much as digits as its factorization.

61871027 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 4704, while the sum is 32.

The square root of 61871027 is about 7865.8138167643. The cubic root of 61871027 is about 395.5145289682.

The spelling of 61871027 in words is "sixty-one million, eight hundred seventy-one thousand, twenty-seven".