9897356434 has 24 divisors (see below), whose sum is σ = 17275777740. Its totient is φ = 4240274976.

The previous prime is 9897356431. The next prime is 9897356479. The reversal of 9897356434 is 4346537989.

It is a happy number.

It can be written as a sum of positive squares in 2 ways, for example, as 9859497025 + 37859409 = 99295^2 + 6153^2 .

It is not an unprimeable number, because it can be changed into a prime (9897356431) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 300804 + ... + 332080.

Almost surely, 2^9897356434 is an apocalyptic number.

9897356434 is a deficient number, since it is larger than the sum of its proper divisors (7378421306).

9897356434 is a wasteful number, since it uses less digits than its factorization.

9897356434 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 34522 (or 34515 counting only the distinct ones).

The product of its digits is 19595520, while the sum is 58.

The square root of 9897356434 is about 99485.4584047337. The cubic root of 9897356434 is about 2147.0380293777.

The spelling of 9897356434 in words is "nine billion, eight hundred ninety-seven million, three hundred fifty-six thousand, four hundred thirty-four".