9528449431 has 2 divisors, whose sum is σ = 9528449432. Its totient is φ = 9528449430.

The previous prime is 9528449401. The next prime is 9528449443. The reversal of 9528449431 is 1349448259.

It is a happy number.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 9528449431 - 2³¹ = 7380965783 is a prime.

It is a super-2 number, since 2×9528449431² (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 (9528449401) 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 as a sum of consecutive naturals, namely, 4764224715 + 4764224716.

It is an arithmetic number, because the mean of its divisors is an integer number (4764224716).

Almost surely, 2^9528449431 is an apocalyptic number.

9528449431 is a deficient number, since it is larger than the sum of its proper divisors (1).

9528449431 is an equidigital number, since it uses as much as digits as its factorization.

9528449431 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 1244160, while the sum is 49.

The square root of 9528449431 is about 97613.7768504016. The cubic root of 9528449431 is about 2120.0238391024.

The spelling of 9528449431 in words is "nine billion, five hundred twenty-eight million, four hundred forty-nine thousand, four hundred thirty-one".