80478841 has 3 divisors (see below), whose sum is σ = 80487813. Its totient is φ = 80469870.

The previous prime is 80478823. The next prime is 80478847. The reversal of 80478841 is 14887408.

The square root of 80478841 is 8971.

It is a perfect power (a square), and thus also a powerful number.

It is a semiprime because it is the product of two primes, and also a brilliant number, because the two primes have the same length.

It is not a de Polignac number, because 80478841 - 2²³ = 72090233 is a prime.

It is a super-3 number, since 3×80478841³ (a number of 25 digits) contains 333 as substring.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 80478794 and 80478803.

It is not an unprimeable number, because it can be changed into a prime (80478847) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 2 ways as a sum of consecutive naturals, for example, 4486 + ... + 13456.

It is an arithmetic number, because the mean of its divisors is an integer number (26829271).

Almost surely, 2^80478841 is an apocalyptic number.

80478841 is the 8971-st square number.

80478841 is the 4486-th centered octagonal number.

It is an amenable number.

80478841 is a deficient number, since it is larger than the sum of its proper divisors (8972).

80478841 is an frugal number, since it uses more digits than its factorization.

80478841 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 17942 (or 8971 counting only the distinct ones).

The product of its (nonzero) digits is 57344, while the sum is 40.

The cubic root of 80478841 is about 431.7449215040.

The spelling of 80478841 in words is "eighty million, four hundred seventy-eight thousand, eight hundred forty-one".