9561090 has 64 divisors (see below), whose sum is σ = 28615680. Its totient is φ = 1986240.

The previous prime is 9561061. The next prime is 9561103. The reversal of 9561090 is 901659.

It is a Harshad number since it is a multiple of its sum of digits (30).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 241 + ... + 4379.

It is an arithmetic number, because the mean of its divisors is an integer number (447120).

Almost surely, 2^9561090 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 9561090, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (14307840).

9561090 is an abundant number, since it is smaller than the sum of its proper divisors (19054590).

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

9561090 is a wasteful number, since it uses less digits than its factorization.

9561090 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4167.

The product of its (nonzero) digits is 2430, while the sum is 30.

The square root of 9561090 is about 3092.1012273210. The cubic root of 9561090 is about 212.2441858227.

The spelling of 9561090 in words is "nine million, five hundred sixty-one thousand, ninety".