9678981337 has 4 divisors (see below), whose sum is σ = 9734929380. Its totient is φ = 9623033296.

The previous prime is 9678981307. The next prime is 9678981343. The reversal of 9678981337 is 7331898769.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 7331898769 = 13 ⋅563992213.

It can be written as a sum of positive squares in 2 ways, for example, as 7157836816 + 2521144521 = 84604^2 + 50211^2 .

It is a cyclic number.

It is not a de Polignac number, because 9678981337 - 2¹⁵ = 9678948569 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (9678981307) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 27973762 + ... + 27974107.

It is an arithmetic number, because the mean of its divisors is an integer number (2433732345).

Almost surely, 2^9678981337 is an apocalyptic number.

It is an amenable number.

9678981337 is a deficient number, since it is larger than the sum of its proper divisors (55948043).

9678981337 is a wasteful number, since it uses less digits than its factorization.

9678981337 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 55948042.

The product of its digits is 13716864, while the sum is 61.

The square root of 9678981337 is about 98381.8140562574. The cubic root of 9678981337 is about 2131.1297126758.

The spelling of 9678981337 in words is "nine billion, six hundred seventy-eight million, nine hundred eighty-one thousand, three hundred thirty-seven".