9964947 has 8 divisors (see below), whose sum is σ = 13371856. Its totient is φ = 6600672.

The previous prime is 9964939. The next prime is 9964961. The reversal of 9964947 is 7494699.

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

It is not a de Polignac number, because 9964947 - 2³ = 9964939 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 9964896 and 9964905.

It is not an unprimeable number, because it can be changed into a prime (9964937) 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, 10108 + ... + 11049.

It is an arithmetic number, because the mean of its divisors is an integer number (1671482).

Almost surely, 2^9964947 is an apocalyptic number.

9964947 is a deficient number, since it is larger than the sum of its proper divisors (3406909).

9964947 is a wasteful number, since it uses less digits than its factorization.

9964947 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 21317.

The product of its digits is 489888, while the sum is 48.

The square root of 9964947 is about 3156.7304287823. The cubic root of 9964947 is about 215.1914429671.

The spelling of 9964947 in words is "nine million, nine hundred sixty-four thousand, nine hundred forty-seven".