8480405 has 4 divisors (see below), whose sum is σ = 10176492. Its totient is φ = 6784320.

The previous prime is 8480369. The next prime is 8480431. The reversal of 8480405 is 5040848.

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

It can be written as a sum of positive squares in 2 ways, for example, as 1473796 + 7006609 = 1214^2 + 2647^2 .

It is not a de Polignac number, because 8480405 - 2⁸ = 8480149 is a prime.

It is a Duffinian number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 848036 + ... + 848045.

It is an arithmetic number, because the mean of its divisors is an integer number (2544123).

Almost surely, 2^8480405 is an apocalyptic number.

It is an amenable number.

8480405 is a deficient number, since it is larger than the sum of its proper divisors (1696087).

8480405 is a wasteful number, since it uses less digits than its factorization.

8480405 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1696086.

The product of its (nonzero) digits is 5120, while the sum is 29.

The square root of 8480405 is about 2912.1134936674. The cubic root of 8480405 is about 203.9258108415.

The spelling of 8480405 in words is "eight million, four hundred eighty thousand, four hundred five".