7421353 has 4 divisors (see below), whose sum is σ = 7429968. Its totient is φ = 7412740.

The previous prime is 7421329. The next prime is 7421357. The reversal of 7421353 is 3531247.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-7421353 is a prime.

It is an Ulam number.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (7421357) 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 3 ways as a sum of consecutive naturals, for example, 2851 + ... + 4792.

It is an arithmetic number, because the mean of its divisors is an integer number (1857492).

Almost surely, 2^7421353 is an apocalyptic number.

It is an amenable number.

7421353 is a deficient number, since it is larger than the sum of its proper divisors (8615).

7421353 is an equidigital number, since it uses as much as digits as its factorization.

7421353 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 8614.

The product of its digits is 2520, while the sum is 25.

The square root of 7421353 is about 2724.2160340179. The cubic root of 7421353 is about 195.0567706721.

The spelling of 7421353 in words is "seven million, four hundred twenty-one thousand, three hundred fifty-three".