9964427 has 8 divisors (see below), whose sum is σ = 11020080. Its totient is φ = 8933760.

The previous prime is 9964403. The next prime is 9964439. The reversal of 9964427 is 7244699.

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

It is a de Polignac number, because none of the positive numbers 2^k-9964427 is a prime.

It is not an unprimeable number, because it can be changed into a prime (9964327) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 5402 + ... + 7007.

It is an arithmetic number, because the mean of its divisors is an integer number (1377510).

Almost surely, 2^9964427 is an apocalyptic number.

9964427 is a deficient number, since it is larger than the sum of its proper divisors (1055653).

9964427 is a wasteful number, since it uses less digits than its factorization.

9964427 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 12493.

The product of its digits is 108864, while the sum is 41.

The square root of 9964427 is about 3156.6480640071. The cubic root of 9964427 is about 215.1876997963.

The spelling of 9964427 in words is "nine million, nine hundred sixty-four thousand, four hundred twenty-seven".