7343521 has 8 divisors (see below), whose sum is σ = 7547904. Its totient is φ = 7141680.

The previous prime is 7343489. The next prime is 7343527. The reversal of 7343521 is 1253437.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 7343521 - 2⁵ = 7343489 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (7343527) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 6186 + ... + 7276.

It is an arithmetic number, because the mean of its divisors is an integer number (943488).

Almost surely, 2^7343521 is an apocalyptic number.

It is an amenable number.

7343521 is a deficient number, since it is larger than the sum of its proper divisors (204383).

7343521 is a wasteful number, since it uses less digits than its factorization.

7343521 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1271.

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

The square root of 7343521 is about 2709.8931713261. The cubic root of 7343521 is about 194.3724820206.

Adding to 7343521 its reverse (1253437), we get a palindrome (8596958).

The spelling of 7343521 in words is "seven million, three hundred forty-three thousand, five hundred twenty-one".