8404360731 has 12 divisors (see below), whose sum is σ = 13073450208. Its totient is φ = 5171914224.

The previous prime is 8404360729. The next prime is 8404360739. The reversal of 8404360731 is 1370634048.

8404360731 is a `hidden beast` number, since 8 + 4 + 0 + 43 + 607 + 3 + 1 = 666.

It is not a de Polignac number, because 8404360731 - 2¹ = 8404360729 is a prime.

It is a super-2 number, since 2×8404360731² (a number of 21 digits) contains 22 as substring.

It is a hoax number, since the sum of its digits (36) coincides with the sum of the digits of its distinct prime factors.

It is not an unprimeable number, because it can be changed into a prime (8404360739) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 35915955 + ... + 35916188.

It is an arithmetic number, because the mean of its divisors is an integer number (1089454184).

Almost surely, 2^8404360731 is an apocalyptic number.

8404360731 is a deficient number, since it is larger than the sum of its proper divisors (4669089477).

8404360731 is a wasteful number, since it uses less digits than its factorization.

8404360731 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 71832162 (or 71832159 counting only the distinct ones).

The product of its (nonzero) digits is 48384, while the sum is 36.

The square root of 8404360731 is about 91675.3005503663. The cubic root of 8404360731 is about 2033.1444171494.

Adding to 8404360731 its reverse (1370634048), we get a palindrome (9774994779).

The spelling of 8404360731 in words is "eight billion, four hundred four million, three hundred sixty thousand, seven hundred thirty-one".