7873530 has 32 divisors (see below), whose sum is σ = 21596544. Its totient is φ = 1799616.

The previous prime is 7873513. The next prime is 7873531. The reversal of 7873530 is 353787.

It is a junction number, because it is equal to n+sod(n) for n = 7873491 and 7873500.

It is not an unprimeable number, because it can be changed into a prime (7873531) by changing a digit.

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 15 ways as a sum of consecutive naturals, for example, 18537 + ... + 18956.

It is an arithmetic number, because the mean of its divisors is an integer number (674892).

Almost surely, 2^7873530 is an apocalyptic number.

7873530 is a gapful number since it is divisible by the number (70) formed by its first and last digit.

7873530 is an abundant number, since it is smaller than the sum of its proper divisors (13723014).

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

7873530 is a wasteful number, since it uses less digits than its factorization.

7873530 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 37510.

The product of its (nonzero) digits is 17640, while the sum is 33.

The square root of 7873530 is about 2805.9811118395. The cubic root of 7873530 is about 198.9404803354.

The spelling of 7873530 in words is "seven million, eight hundred seventy-three thousand, five hundred thirty".