9678945 has 16 divisors (see below), whose sum is σ = 15816960. Its totient is φ = 5051904.

The previous prime is 9678901. The next prime is 9678947. The reversal of 9678945 is 5498769.

It is not a de Polignac number, because 9678945 - 2⁸ = 9678689 is a prime.

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

9678945 is a lucky number.

It is a junction number, because it is equal to n+sod(n) for n = 9678894 and 9678903.

It is not an unprimeable number, because it can be changed into a prime (9678947) 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, 6160 + ... + 7569.

It is an arithmetic number, because the mean of its divisors is an integer number (988560).

Almost surely, 2^9678945 is an apocalyptic number.

It is an amenable number.

9678945 is a deficient number, since it is larger than the sum of its proper divisors (6138015).

9678945 is a wasteful number, since it uses less digits than its factorization.

9678945 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 13784.

The product of its digits is 544320, while the sum is 48.

The square root of 9678945 is about 3111.1002876796. The cubic root of 9678945 is about 213.1127045764.

The spelling of 9678945 in words is "nine million, six hundred seventy-eight thousand, nine hundred forty-five".