71042877 has 6 divisors (see below), whose sum is σ = 102617502. Its totient is φ = 47361912.

The previous prime is 71042827. The next prime is 71042879. The reversal of 71042877 is 77824017.

It can be written as a sum of positive squares in only one way, i.e., 59305401 + 11737476 = 7701^2 + 3426^2 .

It is not a de Polignac number, because 71042877 - 2¹⁶ = 70977341 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (71042879) 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 5 ways as a sum of consecutive naturals, for example, 3946818 + ... + 3946835.

It is an arithmetic number, because the mean of its divisors is an integer number (17102917).

Almost surely, 2^71042877 is an apocalyptic number.

It is an amenable number.

71042877 is a deficient number, since it is larger than the sum of its proper divisors (31574625).

71042877 is a wasteful number, since it uses less digits than its factorization.

71042877 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7893659 (or 7893656 counting only the distinct ones).

The product of its (nonzero) digits is 21952, while the sum is 36.

The square root of 71042877 is about 8428.6936710264. The cubic root of 71042877 is about 414.1651130242.

The spelling of 71042877 in words is "seventy-one million, forty-two thousand, eight hundred seventy-seven".