8404530815 has 16 divisors (see below), whose sum is σ = 10327160448. Its totient is φ = 6562693536.

The previous prime is 8404530811. The next prime is 8404530847. The reversal of 8404530815 is 5180354048.

8404530815 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

It is a cyclic number.

It is not a de Polignac number, because 8404530815 - 2² = 8404530811 is a prime.

It is a super-2 number, since 2×8404530815² (a number of 21 digits) contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (8404530811) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 314612 + ... + 340278.

It is an arithmetic number, because the mean of its divisors is an integer number (645447528).

Almost surely, 2^8404530815 is an apocalyptic number.

8404530815 is a deficient number, since it is larger than the sum of its proper divisors (1922629633).

8404530815 is a wasteful number, since it uses less digits than its factorization.

8404530815 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 27238.

The product of its (nonzero) digits is 76800, while the sum is 38.

The square root of 8404530815 is about 91676.2281892094. The cubic root of 8404530815 is about 2033.1581323707.

The spelling of 8404530815 in words is "eight billion, four hundred four million, five hundred thirty thousand, eight hundred fifteen".