71083413 has 10 divisors (see below), whose sum is σ = 106186454. Its totient is φ = 47388888.

The previous prime is 71083399. The next prime is 71083421. The reversal of 71083413 is 31438017.

It can be written as a sum of positive squares in only one way, i.e., 44116164 + 26967249 = 6642^2 + 5193^2 .

It is a de Polignac number, because none of the positive numbers 2^k-71083413 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (27).

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (71083423) 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 9 ways as a sum of consecutive naturals, for example, 438706 + ... + 438867.

Almost surely, 2^71083413 is an apocalyptic number.

It is an amenable number.

71083413 is a deficient number, since it is larger than the sum of its proper divisors (35103041).

71083413 is an equidigital number, since it uses as much as digits as its factorization.

71083413 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 877585 (or 877576 counting only the distinct ones).

The product of its (nonzero) digits is 2016, while the sum is 27.

The square root of 71083413 is about 8431.0979712016. The cubic root of 71083413 is about 414.2438701806.

The spelling of 71083413 in words is "seventy-one million, eighty-three thousand, four hundred thirteen".