71740071 has 12 divisors (see below), whose sum is σ = 111595848. Its totient is φ = 44147664.

The previous prime is 71740069. The next prime is 71740099. The reversal of 71740071 is 17004717.

It is not a de Polignac number, because 71740071 - 2¹ = 71740069 is a prime.

It is a hoax number, since the sum of its digits (27) coincides with the sum of the digits of its distinct prime factors.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (71740021) 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 in 11 ways as a sum of consecutive naturals, for example, 306465 + ... + 306698.

It is an arithmetic number, because the mean of its divisors is an integer number (9299654).

Almost surely, 2^71740071 is an apocalyptic number.

71740071 is a deficient number, since it is larger than the sum of its proper divisors (39855777).

71740071 is a wasteful number, since it uses less digits than its factorization.

71740071 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 613182 (or 613179 counting only the distinct ones).

The product of its (nonzero) digits is 1372, while the sum is 27.

The square root of 71740071 is about 8469.9510624324. The cubic root of 71740071 is about 415.5155367865.

Adding to 71740071 its reverse (17004717), we get a palindrome (88744788).

The spelling of 71740071 in words is "seventy-one million, seven hundred forty thousand, seventy-one".