7009920 has 96 divisors (see below), whose sum is σ = 24226020. Its totient is φ = 1867776.

The previous prime is 7009897. The next prime is 7009921. The reversal of 7009920 is 299007.

It can be written as a sum of positive squares in 2 ways, for example, as 6843456 + 166464 = 2616^2 + 408^2 .

It is a tau number, because it is divible by the number of its divisors (96).

It is a super-3 number, since 3×7009920³ (a number of 22 digits) contains 333 as substring.

It is not an unprimeable number, because it can be changed into a prime (7009921) 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 11 ways as a sum of consecutive naturals, for example, 5152 + ... + 6368.

Almost surely, 2^7009920 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 7009920, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (12113010).

7009920 is an abundant number, since it is smaller than the sum of its proper divisors (17216100).

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

7009920 is a wasteful number, since it uses less digits than its factorization.

7009920 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1242 (or 1227 counting only the distinct ones).

The product of its (nonzero) digits is 1134, while the sum is 27.

The square root of 7009920 is about 2647.6253511401. The cubic root of 7009920 is about 191.3834388503.

The spelling of 7009920 in words is "seven million, nine thousand, nine hundred twenty".