9964438 has 12 divisors (see below), whose sum is σ = 16329708. Its totient is φ = 4522560.

The previous prime is 9964403. The next prime is 9964439. The reversal of 9964438 is 8344699.

It is a junction number, because it is equal to n+sod(n) for n = 9964394 and 9964403.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (9964439) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 14470 + ... + 15142.

It is an arithmetic number, because the mean of its divisors is an integer number (1360809).

Almost surely, 2^9964438 is an apocalyptic number.

9964438 is a deficient number, since it is larger than the sum of its proper divisors (6365270).

9964438 is an equidigital number, since it uses as much as digits as its factorization.

9964438 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1359 (or 686 counting only the distinct ones).

The product of its digits is 186624, while the sum is 43.

The square root of 9964438 is about 3156.6498063612. The cubic root of 9964438 is about 215.1877789801.

The spelling of 9964438 in words is "nine million, nine hundred sixty-four thousand, four hundred thirty-eight".