9959220 has 48 divisors (see below), whose sum is σ = 30985920. Its totient is φ = 2655648.

The previous prime is 9959219. The next prime is 9959227. The reversal of 9959220 is 229599.

It is a Harshad number since it is a multiple of its sum of digits (36).

It is a d-powerful number, because it can be written as 9⁵ + 9⁵ + 5¹⁰ + 9⁵ + 2⁶ + 2¹⁴ + 0 .

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (9959227) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 8682 + ... + 9761.

It is an arithmetic number, because the mean of its divisors is an integer number (645540).

Almost surely, 2^9959220 is an apocalyptic number.

9959220 is a gapful number since it is divisible by the number (90) formed by its first and last digit.

It is an amenable number.

9959220 is an abundant number, since it is smaller than the sum of its proper divisors (21026700).

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

9959220 is a wasteful number, since it uses less digits than its factorization.

9959220 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 18461 (or 18453 counting only the distinct ones).

The product of its (nonzero) digits is 14580, while the sum is 36.

The square root of 9959220 is about 3155.8231889635. The cubic root of 9959220 is about 215.1502105163.

It can be divided in two parts, 99 and 59220, that added together give a cube (59319 = 39³).

The spelling of 9959220 in words is "nine million, nine hundred fifty-nine thousand, two hundred twenty".