71106829 has 4 divisors (see below), whose sum is σ = 71168220. Its totient is φ = 71045440.

The previous prime is 71106803. The next prime is 71106851. The reversal of 71106829 is 92860117.

It is a happy number.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 25908100 + 45198729 = 5090^2 + 6723^2 .

It is a cyclic number.

It is not a de Polignac number, because 71106829 - 2¹⁵ = 71074061 is a prime.

It is a super-2 number, since 2×71106829² = 10112362260870482, which contains 22 as substring.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 71106794 and 71106803.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (71106029) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 28924 + ... + 31285.

It is an arithmetic number, because the mean of its divisors is an integer number (17792055).

Almost surely, 2^71106829 is an apocalyptic number.

It is an amenable number.

71106829 is a deficient number, since it is larger than the sum of its proper divisors (61391).

71106829 is a wasteful number, since it uses less digits than its factorization.

71106829 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 61390.

The product of its (nonzero) digits is 6048, while the sum is 34.

The square root of 71106829 is about 8432.4865253376. The cubic root of 71106829 is about 414.2893513468.

The spelling of 71106829 in words is "seventy-one million, one hundred six thousand, eight hundred twenty-nine".