7534820 has 24 divisors (see below), whose sum is σ = 16062144. Its totient is φ = 2968416.

The previous prime is 7534819. The next prime is 7534837. The reversal of 7534820 is 284357.

It is a happy number.

7534820 is digitally balanced in base 5, because in such base it contains all the possibile digits an equal number of times.

It is a super-3 number, since 3×7534820³ (a number of 22 digits) contains 333 as substring.

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 7 ways as a sum of consecutive naturals, for example, 1472 + ... + 4151.

It is an arithmetic number, because the mean of its divisors is an integer number (669256).

Almost surely, 2^7534820 is an apocalyptic number.

It is an amenable number.

7534820 is an abundant number, since it is smaller than the sum of its proper divisors (8527324).

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

7534820 is a wasteful number, since it uses less digits than its factorization.

7534820 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5699 (or 5697 counting only the distinct ones).

The product of its (nonzero) digits is 6720, while the sum is 29.

The square root of 7534820 is about 2744.9626591267. The cubic root of 7534820 is about 196.0458382309.

The spelling of 7534820 in words is "seven million, five hundred thirty-four thousand, eight hundred twenty".