8405504806 has 4 divisors (see below), whose sum is σ = 12608257212. Its totient is φ = 4202752402.

The previous prime is 8405504741. The next prime is 8405504857. The reversal of 8405504806 is 6084055048.

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

It is a super-2 number, since 2×8405504806² (a number of 21 digits) contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 2101376200 + ... + 2101376203.

It is an arithmetic number, because the mean of its divisors is an integer number (3152064303).

Almost surely, 2^8405504806 is an apocalyptic number.

8405504806 is a deficient number, since it is larger than the sum of its proper divisors (4202752406).

8405504806 is a wasteful number, since it uses less digits than its factorization.

8405504806 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4202752405.

The product of its (nonzero) digits is 153600, while the sum is 40.

The square root of 8405504806 is about 91681.5401594018. The cubic root of 8405504806 is about 2033.2366694230.

The spelling of 8405504806 in words is "eight billion, four hundred five million, five hundred four thousand, eight hundred six".