9678755 has 4 divisors (see below), whose sum is σ = 11614512. Its totient is φ = 7743000.

The previous prime is 9678751. The next prime is 9678761. The reversal of 9678755 is 5578769.

It is a happy number.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 5578769 = 7 ⋅796967.

It is not a de Polignac number, because 9678755 - 2² = 9678751 is a prime.

It is a d-powerful number, because it can be written as 9⁵ + 6⁸ + 7 + 8⁷ + 7⁸ + 5 + 5⁷ .

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (9678751) 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, 967871 + ... + 967880.

It is an arithmetic number, because the mean of its divisors is an integer number (2903628).

Almost surely, 2^9678755 is an apocalyptic number.

9678755 is a deficient number, since it is larger than the sum of its proper divisors (1935757).

9678755 is a wasteful number, since it uses less digits than its factorization.

9678755 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1935756.

The product of its digits is 529200, while the sum is 47.

The square root of 9678755 is about 3111.0697517092. The cubic root of 9678755 is about 213.1113100829. Note that the first 3 decimals are identical.

The spelling of 9678755 in words is "nine million, six hundred seventy-eight thousand, seven hundred fifty-five".