9423720 has 48 divisors (see below), whose sum is σ = 30628260. Its totient is φ = 2512896.

The previous prime is 9423719. The next prime is 9423731. The reversal of 9423720 is 273249.

It can be written as a sum of positive squares in 2 ways, for example, as 8964036 + 459684 = 2994^2 + 678^2 .

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 12729 + ... + 13448.

Almost surely, 2^9423720 is an apocalyptic number.

9423720 is a gapful number since it is divisible by the number (90) formed by its first and last digit.

It is an amenable number.

9423720 is an abundant number, since it is smaller than the sum of its proper divisors (21204540).

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

9423720 is a wasteful number, since it uses less digits than its factorization.

9423720 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 26194 (or 26187 counting only the distinct ones).

The product of its (nonzero) digits is 3024, while the sum is 27.

The square root of 9423720 is about 3069.8078115739. The cubic root of 9423720 is about 211.2227979866. Note that the first 3 decimals are identical.

Adding to 9423720 its reverse (273249), we get a palindrome (9696969).

The spelling of 9423720 in words is "nine million, four hundred twenty-three thousand, seven hundred twenty".