9896238815 has 16 divisors (see below), whose sum is σ = 12603130848. Its totient is φ = 7434049536.

The previous prime is 9896238769. The next prime is 9896238817. The reversal of 9896238815 is 5188326989.

It is a cyclic number.

It is not a de Polignac number, because 9896238815 - 2²² = 9892044511 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (9896238817) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 97637 + ... + 171246.

It is an arithmetic number, because the mean of its divisors is an integer number (787695678).

Almost surely, 2^9896238815 is an apocalyptic number.

9896238815 is a deficient number, since it is larger than the sum of its proper divisors (2706892033).

9896238815 is a wasteful number, since it uses less digits than its factorization.

9896238815 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 269338.

The product of its digits is 7464960, while the sum is 59.

The square root of 9896238815 is about 99479.8412493707. The cubic root of 9896238815 is about 2146.9572111364.

The spelling of 9896238815 in words is "nine billion, eight hundred ninety-six million, two hundred thirty-eight thousand, eight hundred fifteen".