9764864 has 34 divisors (see below), whose sum is σ = 19660650. Its totient is φ = 4849664.

The previous prime is 9764863. The next prime is 9764873. The reversal of 9764864 is 4684679.

It can be written as a sum of positive squares in only one way, i.e., 6553600 + 3211264 = 2560^2 + 1792^2 .

It is a nialpdrome in base 4 and base 16.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (9764863) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 65462 + ... + 65610.

Almost surely, 2^9764864 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 9764864, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (9830325).

9764864 is an abundant number, since it is smaller than the sum of its proper divisors (9895786).

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

9764864 is an frugal number, since it uses more digits than its factorization.

9764864 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 181 (or 151 counting only the distinct ones).

The product of its digits is 290304, while the sum is 44.

The square root of 9764864 is about 3124.8782376278. The cubic root of 9764864 is about 213.7414410125.

The spelling of 9764864 in words is "nine million, seven hundred sixty-four thousand, eight hundred sixty-four".