8480821 has 8 divisors (see below), whose sum is σ = 9118080. Its totient is φ = 7862688.

The previous prime is 8480819. The next prime is 8480827. The reversal of 8480821 is 1280848.

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 8480821 - 2¹ = 8480819 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 (8480827) 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, 3856 + ... + 5641.

It is an arithmetic number, because the mean of its divisors is an integer number (1139760).

Almost surely, 2^8480821 is an apocalyptic number.

It is an amenable number.

8480821 is a deficient number, since it is larger than the sum of its proper divisors (637259).

8480821 is a wasteful number, since it uses less digits than its factorization.

8480821 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 9563.

The product of its (nonzero) digits is 4096, while the sum is 31.

The square root of 8480821 is about 2912.1849185792. The cubic root of 8480821 is about 203.9291452636.

The spelling of 8480821 in words is "eight million, four hundred eighty thousand, eight hundred twenty-one".