9947564 has 48 divisors (see below), whose sum is σ = 20388480. Its totient is φ = 4199040.

The previous prime is 9947527. The next prime is 9947573. The reversal of 9947564 is 4657499.

It is a Harshad number since it is a multiple of its sum of digits (44).

Its product of digits (272160) is a multiple of the sum of its prime factors (270).

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 60947 + ... + 61109.

It is an arithmetic number, because the mean of its divisors is an integer number (424760).

Almost surely, 2^9947564 is an apocalyptic number.

It is an amenable number.

9947564 is an abundant number, since it is smaller than the sum of its proper divisors (10440916).

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

9947564 is a wasteful number, since it uses less digits than its factorization.

9947564 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 270 (or 268 counting only the distinct ones).

The product of its digits is 272160, while the sum is 44.

The square root of 9947564 is about 3153.9759035224. The cubic root of 9947564 is about 215.0662424331.

It can be divided in two parts, 994 and 7564, that added together give a palindrome (8558).

The spelling of 9947564 in words is "nine million, nine hundred forty-seven thousand, five hundred sixty-four".