9777248 has 48 divisors (see below), whose sum is σ = 21838320. Its totient is φ = 4271616.

The previous prime is 9777239. The next prime is 9777259. The reversal of 9777248 is 8427779.

It is a junction number, because it is equal to n+sod(n) for n = 9777199 and 9777208.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 7286 + ... + 8522.

It is an arithmetic number, because the mean of its divisors is an integer number (454965).

Almost surely, 2^9777248 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 9777248, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (10919160).

9777248 is an abundant number, since it is smaller than the sum of its proper divisors (12061072).

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

9777248 is a wasteful number, since it uses less digits than its factorization.

9777248 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1279 (or 1271 counting only the distinct ones).

The product of its digits is 197568, while the sum is 44.

The square root of 9777248 is about 3126.8591269835. The cubic root of 9777248 is about 213.8317599290.

The spelling of 9777248 in words is "nine million, seven hundred seventy-seven thousand, two hundred forty-eight".