9749478 has 8 divisors (see below), whose sum is σ = 19498968. Its totient is φ = 3249824.

The previous prime is 9749461. The next prime is 9749479. The reversal of 9749478 is 8749479.

It is a happy number.

9749478 is digitally balanced in base 2 and base 4, because in such bases it contains all the possibile digits an equal number of times.

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

9749478 is an admirable number.

It is a d-powerful number, because it can be written as 9⁷ + 7³ + 4 + 9⁷ + 4⁸ + 7⁶ + 8 .

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (9749479) 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, 812451 + ... + 812462.

It is an arithmetic number, because the mean of its divisors is an integer number (2437371).

Almost surely, 2^9749478 is an apocalyptic number.

9749478 is a primitive abundant number, since it is smaller than the sum of its proper divisors, none of which is abundant.

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

9749478 is a wasteful number, since it uses less digits than its factorization.

9749478 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1624918.

The product of its digits is 508032, while the sum is 48.

The square root of 9749478 is about 3122.4154111841. The cubic root of 9749478 is about 213.6291214906.

Subtracting from 9749478 its reverse (8749479), we obtain a palindrome (999999).

The spelling of 9749478 in words is "nine million, seven hundred forty-nine thousand, four hundred seventy-eight".