80409471 has 4 divisors (see below), whose sum is σ = 107212632. Its totient is φ = 53606312.

The previous prime is 80409437. The next prime is 80409491. The reversal of 80409471 is 17490408.

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

It is a cyclic number.

It is not a de Polignac number, because 80409471 - 2⁹ = 80408959 is a prime.

It is a super-3 number, since 3×80409471³ (a number of 25 digits) contains 333 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (80409421) 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, 13401576 + ... + 13401581.

It is an arithmetic number, because the mean of its divisors is an integer number (26803158).

Almost surely, 2^80409471 is an apocalyptic number.

80409471 is a deficient number, since it is larger than the sum of its proper divisors (26803161).

80409471 is a wasteful number, since it uses less digits than its factorization.

80409471 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 26803160.

The product of its (nonzero) digits is 8064, while the sum is 33.

The square root of 80409471 is about 8967.1328193576. The cubic root of 80409471 is about 431.6208360745.

Adding to 80409471 its reverse (17490408), we get a palindrome (97899879).

The spelling of 80409471 in words is "eighty million, four hundred nine thousand, four hundred seventy-one".