9747578 has 8 divisors (see below), whose sum is σ = 15093120. Its totient is φ = 4716540.

The previous prime is 9747571. The next prime is 9747583. The reversal of 9747578 is 8757479.

9747578 is nontrivially palindromic in base 11.

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

It is not an unprimeable number, because it can be changed into a prime (9747571) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 78548 + ... + 78671.

It is an arithmetic number, because the mean of its divisors is an integer number (1886640).

Almost surely, 2^9747578 is an apocalyptic number.

9747578 is a deficient number, since it is larger than the sum of its proper divisors (5345542).

9747578 is a wasteful number, since it uses less digits than its factorization.

9747578 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 157252.

The product of its digits is 493920, while the sum is 47.

The square root of 9747578 is about 3122.1111447224. Note that the first 4 decimals coincide. The cubic root of 9747578 is about 213.6152430826.

Subtracting from 9747578 its reverse (8757479), we obtain a palindrome (990099).

It can be divided in two parts, 97475 and 78, that multiplied together give a triangular number (7603050 = T₃₈₉₉).

The spelling of 9747578 in words is "nine million, seven hundred forty-seven thousand, five hundred seventy-eight".