9527801997 has 96 divisors (see below), whose sum is σ = 16551475200. Its totient is φ = 4759852032.

The previous prime is 9527801989. The next prime is 9527802019. The reversal of 9527801997 is 7991087259.

It is not a de Polignac number, because 9527801997 - 2³ = 9527801989 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (57).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (9527801947) 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 95 ways as a sum of consecutive naturals, for example, 6110704 + ... + 6112262.

It is an arithmetic number, because the mean of its divisors is an integer number (172411200).

Almost surely, 2^9527801997 is an apocalyptic number.

It is an amenable number.

9527801997 is a deficient number, since it is larger than the sum of its proper divisors (7023673203).

9527801997 is a wasteful number, since it uses less digits than its factorization.

9527801997 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1675 (or 1658 counting only the distinct ones).

The product of its (nonzero) digits is 2857680, while the sum is 57.

The square root of 9527801997 is about 97610.4604896422. The cubic root of 9527801997 is about 2119.9758212651.

The spelling of 9527801997 in words is "nine billion, five hundred twenty-seven million, eight hundred one thousand, nine hundred ninety-seven".