9897752344 has 8 divisors (see below), whose sum is σ = 18558285660. Its totient is φ = 4948876168.

The previous prime is 9897752339. The next prime is 9897752353. The reversal of 9897752344 is 4432577989.

It is a tau number, because it is divible by the number of its divisors (8).

It is a congruent number.

It is an unprimeable number.

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, 618609514 + ... + 618609529.

Almost surely, 2^9897752344 is an apocalyptic number.

It is an amenable number.

9897752344 is a deficient number, since it is larger than the sum of its proper divisors (8660533316).

9897752344 is a wasteful number, since it uses less digits than its factorization.

9897752344 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1237219049 (or 1237219045 counting only the distinct ones).

The product of its digits is 15240960, while the sum is 58.

The square root of 9897752344 is about 99487.4481731238. The cubic root of 9897752344 is about 2147.0666573080.

It can be divided in two parts, 98977 and 52344, that added together give a square (151321 = 389²).

The spelling of 9897752344 in words is "nine billion, eight hundred ninety-seven million, seven hundred fifty-two thousand, three hundred forty-four".