71849017 has 2 divisors, whose sum is σ = 71849018. Its totient is φ = 71849016.

The previous prime is 71849003. The next prime is 71849027. The reversal of 71849017 is 71094817.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 50282281 + 21566736 = 7091^2 + 4644^2 .

It is a cyclic number.

It is not a de Polignac number, because 71849017 - 2¹⁵ = 71816249 is a prime.

It is not a weakly prime, because it can be changed into another prime (71849027) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 35924508 + 35924509.

It is an arithmetic number, because the mean of its divisors is an integer number (35924509).

Almost surely, 2^71849017 is an apocalyptic number.

It is an amenable number.

71849017 is a deficient number, since it is larger than the sum of its proper divisors (1).

71849017 is an equidigital number, since it uses as much as digits as its factorization.

71849017 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 14112, while the sum is 37.

The square root of 71849017 is about 8476.3799466518. The cubic root of 71849017 is about 415.7257673173.

The spelling of 71849017 in words is "seventy-one million, eight hundred forty-nine thousand, seventeen".