71927971 has 2 divisors, whose sum is σ = 71927972. Its totient is φ = 71927970.

The previous prime is 71927959. The next prime is 71927983. The reversal of 71927971 is 17972917.

It is a balanced prime because it is at equal distance from previous prime (71927959) and next prime (71927983).

It is a cyclic number.

It is not a de Polignac number, because 71927971 - 2¹⁵ = 71895203 is a prime.

It is not a weakly prime, because it can be changed into another prime (71927941) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 35963985 + 35963986.

It is an arithmetic number, because the mean of its divisors is an integer number (35963986).

Almost surely, 2^71927971 is an apocalyptic number.

71927971 is a deficient number, since it is larger than the sum of its proper divisors (1).

71927971 is an equidigital number, since it uses as much as digits as its factorization.

71927971 is an evil number, because the sum of its binary digits is even.

The product of its digits is 55566, while the sum is 43.

The square root of 71927971 is about 8481.0359626640. The cubic root of 71927971 is about 415.8779902144.

The spelling of 71927971 in words is "seventy-one million, nine hundred twenty-seven thousand, nine hundred seventy-one".