9678981 has 8 divisors (see below), whose sum is σ = 13898080. Its totient is φ = 5956272.

The previous prime is 9678979. The next prime is 9679003. The reversal of 9678981 is 1898769.

It is a happy number.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 9678981 - 2¹ = 9678979 is a prime.

It is a super-2 number, since 2×9678981² = 187365346396722, which contains 22 as substring.

It is an alternating number because its digits alternate between odd and even.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 9678981.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (9678901) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 124051 + ... + 124128.

It is an arithmetic number, because the mean of its divisors is an integer number (1737260).

Almost surely, 2^9678981 is an apocalyptic number.

It is an amenable number.

9678981 is a deficient number, since it is larger than the sum of its proper divisors (4219099).

9678981 is a wasteful number, since it uses less digits than its factorization.

9678981 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 248195.

The product of its digits is 217728, while the sum is 48.

The square root of 9678981 is about 3111.1060734086. The cubic root of 9678981 is about 213.1129687942.

The spelling of 9678981 in words is "nine million, six hundred seventy-eight thousand, nine hundred eighty-one".