9389478 has 48 divisors (see below), whose sum is σ = 22120560. Its totient is φ = 2649024.

The previous prime is 9389467. The next prime is 9389483. The reversal of 9389478 is 8749839.

9389478 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a super-2 number, since 2×9389478² = 176324594224968, which contains 22 as substring.

It is a Curzon number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 31900 + ... + 32192.

It is an arithmetic number, because the mean of its divisors is an integer number (460845).

Almost surely, 2^9389478 is an apocalyptic number.

9389478 is a gapful number since it is divisible by the number (98) formed by its first and last digit.

It is a practical number, because each smaller number is the sum of distinct divisors of 9389478, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (11060280).

9389478 is an abundant number, since it is smaller than the sum of its proper divisors (12731082).

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

9389478 is a wasteful number, since it uses less digits than its factorization.

9389478 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 421 (or 414 counting only the distinct ones).

The product of its digits is 435456, while the sum is 48.

The square root of 9389478 is about 3064.2255138942. The cubic root of 9389478 is about 210.9666546588.

The spelling of 9389478 in words is "nine million, three hundred eighty-nine thousand, four hundred seventy-eight".