9789450 has 96 divisors (see below), whose sum is σ = 28123200. Its totient is φ = 2227200.

The previous prime is 9789431. The next prime is 9789469. The reversal of 9789450 is 549879.

It is an interprime number because it is at equal distance from previous prime (9789431) and next prime (9789469).

It is an Ulam number.

It is an unprimeable number.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 27876 + ... + 28224.

It is an arithmetic number, because the mean of its divisors is an integer number (292950).

Almost surely, 2^9789450 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 9789450, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (14061600).

9789450 is an abundant number, since it is smaller than the sum of its proper divisors (18333750).

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

9789450 is a wasteful number, since it uses less digits than its factorization.

9789450 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 392 (or 387 counting only the distinct ones).

The product of its (nonzero) digits is 90720, while the sum is 42.

The square root of 9789450 is about 3128.8096778168. The cubic root of 9789450 is about 213.9206769218.

The spelling of 9789450 in words is "nine million, seven hundred eighty-nine thousand, four hundred fifty".