9561420 has 108 divisors (see below), whose sum is σ = 31951920. Its totient is φ = 2312640.

The previous prime is 9561407. The next prime is 9561421. The reversal of 9561420 is 241659.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (9561421) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 35 ways as a sum of consecutive naturals, for example, 21561 + ... + 21999.

Almost surely, 2^9561420 is an apocalyptic number.

9561420 is a gapful number since it is divisible by the number (90) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 9561420, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (15975960).

9561420 is an abundant number, since it is smaller than the sum of its proper divisors (22390500).

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

9561420 is a wasteful number, since it uses less digits than its factorization.

9561420 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 476 (or 460 counting only the distinct ones).

The product of its (nonzero) digits is 2160, while the sum is 27.

The square root of 9561420 is about 3092.1545886323. The cubic root of 9561420 is about 212.2466276564.

The spelling of 9561420 in words is "nine million, five hundred sixty-one thousand, four hundred twenty".