8404488431 has 2 divisors, whose sum is σ = 8404488432. Its totient is φ = 8404488430.

The previous prime is 8404488427. The next prime is 8404488479. The reversal of 8404488431 is 1348844048.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 8404488431 - 2² = 8404488427 is a prime.

It is a super-2 number, since 2×8404488431² (a number of 21 digits) contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (8404488931) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 4202244215 + 4202244216.

It is an arithmetic number, because the mean of its divisors is an integer number (4202244216).

Almost surely, 2^8404488431 is an apocalyptic number.

8404488431 is a deficient number, since it is larger than the sum of its proper divisors (1).

8404488431 is an equidigital number, since it uses as much as digits as its factorization.

8404488431 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 393216, while the sum is 44.

The square root of 8404488431 is about 91675.9970275753. The cubic root of 8404488431 is about 2033.1547146301.

The spelling of 8404488431 in words is "eight billion, four hundred four million, four hundred eighty-eight thousand, four hundred thirty-one".