9923478 has 32 divisors (see below), whose sum is σ = 21150720. Its totient is φ = 3093120.

The previous prime is 9923477. The next prime is 9923483. The reversal of 9923478 is 8743299.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (9923471) 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, 27463 + ... + 27821.

It is an arithmetic number, because the mean of its divisors is an integer number (660960).

Almost surely, 2^9923478 is an apocalyptic number.

9923478 is an abundant number, since it is smaller than the sum of its proper divisors (11227242).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

9923478 is a wasteful number, since it uses less digits than its factorization.

9923478 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 652.

The product of its digits is 108864, while the sum is 42.

The square root of 9923478 is about 3150.1552342702. The cubic root of 9923478 is about 214.8925224487.

It can be divided in two parts, 9923 and 478, that added together give a palindrome (10401).

The spelling of 9923478 in words is "nine million, nine hundred twenty-three thousand, four hundred seventy-eight".