80000071 has 8 divisors (see below), whose sum is σ = 81031104. Its totient is φ = 78973440.

The previous prime is 80000069. The next prime is 80000083. The reversal of 80000071 is 17000008.

80000071 = 40² + 41² + ... + 621².

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 80000071 - 2¹ = 80000069 is a prime.

It is a super-2 number, since 2×80000071² = 12800022720010082, which contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (80010071) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 49746 + ... + 51328.

It is an arithmetic number, because the mean of its divisors is an integer number (10128888).

Almost surely, 2^80000071 is an apocalyptic number.

80000071 is a deficient number, since it is larger than the sum of its proper divisors (1031033).

80000071 is a wasteful number, since it uses less digits than its factorization.

80000071 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2201.

The product of its (nonzero) digits is 56, while the sum is 16.

The square root of 80000071 is about 8944.2758790189. The cubic root of 80000071 is about 430.8870654771.

Adding to 80000071 its reverse (17000008), we get a palindrome (97000079).

It can be divided in two parts, 8000007 and 1, that added together give a palindrome (8000008).

The spelling of 80000071 in words is "eighty million, seventy-one", and thus it is an aban number and an uban number.