9964478 has 8 divisors (see below), whose sum is σ = 15011568. Its totient is φ = 4960624.

The previous prime is 9964469. The next prime is 9964481. The reversal of 9964478 is 8744699.

9964478 is digitally balanced in base 2, because in such base 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.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 10226 + ... + 11157.

It is an arithmetic number, because the mean of its divisors is an integer number (1876446).

Almost surely, 2^9964478 is an apocalyptic number.

9964478 is a deficient number, since it is larger than the sum of its proper divisors (5047090).

9964478 is a wasteful number, since it uses less digits than its factorization.

9964478 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 21618.

The product of its digits is 435456, while the sum is 47.

The square root of 9964478 is about 3156.6561421859. The cubic root of 9964478 is about 215.1880669208.

The spelling of 9964478 in words is "nine million, nine hundred sixty-four thousand, four hundred seventy-eight".