9781264 has 20 divisors (see below), whose sum is σ = 19355904. Its totient is φ = 4786208.

The previous prime is 9781259. The next prime is 9781267. The reversal of 9781264 is 4621879.

It is not an unprimeable number, because it can be changed into a prime (9781267) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 5752 + ... + 7255.

Almost surely, 2^9781264 is an apocalyptic number.

9781264 is a gapful number since it is divisible by the number (94) formed by its first and last digit.

It is an amenable number.

9781264 is a deficient number, since it is larger than the sum of its proper divisors (9574640).

9781264 is a wasteful number, since it uses less digits than its factorization.

9781264 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 13062 (or 13056 counting only the distinct ones).

The product of its digits is 24192, while the sum is 37.

The square root of 9781264 is about 3127.5012390085. The cubic root of 9781264 is about 213.8610330196.

The spelling of 9781264 in words is "nine million, seven hundred eighty-one thousand, two hundred sixty-four".