9778472 has 16 divisors (see below), whose sum is σ = 20001600. Its totient is φ = 4444720.

The previous prime is 9778469. The next prime is 9778487. The reversal of 9778472 is 2748779.

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

It is an Ulam number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 55472 + ... + 55647.

It is an arithmetic number, because the mean of its divisors is an integer number (1250100).

Almost surely, 2^9778472 is an apocalyptic number.

It is an amenable number.

9778472 is an abundant number, since it is smaller than the sum of its proper divisors (10223128).

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

9778472 is a wasteful number, since it uses less digits than its factorization.

9778472 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 111136 (or 111132 counting only the distinct ones).

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

The square root of 9778472 is about 3127.0548444183. The cubic root of 9778472 is about 213.8406826563.

It can be divided in two parts, 977 and 8472, that added together give a palindrome (9449).

The spelling of 9778472 in words is "nine million, seven hundred seventy-eight thousand, four hundred seventy-two".