80517071 has 8 divisors (see below), whose sum is σ = 82633488. Its totient is φ = 78408000.

The previous prime is 80517061. The next prime is 80517097. The reversal of 80517071 is 17071508.

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 80517071 - 2⁶ = 80517007 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (80517061) 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, 25616 + ... + 28586.

It is an arithmetic number, because the mean of its divisors is an integer number (10329186).

Almost surely, 2^80517071 is an apocalyptic number.

80517071 is a deficient number, since it is larger than the sum of its proper divisors (2116417).

80517071 is a wasteful number, since it uses less digits than its factorization.

80517071 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3673.

The product of its (nonzero) digits is 1960, while the sum is 29.

The square root of 80517071 is about 8973.1305016700. The cubic root of 80517071 is about 431.8132748553.

Adding to 80517071 its reverse (17071508), we get a palindrome (97588579).

The spelling of 80517071 in words is "eighty million, five hundred seventeen thousand, seventy-one".