7379521 has 4 divisors (see below), whose sum is σ = 7428544. Its totient is φ = 7330500.

The previous prime is 7379507. The next prime is 7379569. The reversal of 7379521 is 1259737.

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-7379521 is a prime.

It is a Duffinian number.

7379521 is a lucky number.

It is not an unprimeable number, because it can be changed into a prime (7379501) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 24285 + ... + 24586.

It is an arithmetic number, because the mean of its divisors is an integer number (1857136).

Almost surely, 2^7379521 is an apocalyptic number.

It is an amenable number.

7379521 is a deficient number, since it is larger than the sum of its proper divisors (49023).

7379521 is a wasteful number, since it uses less digits than its factorization.

7379521 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 49022.

The product of its digits is 13230, while the sum is 34.

The square root of 7379521 is about 2716.5273788423. The cubic root of 7379521 is about 194.6895872154.

The spelling of 7379521 in words is "seven million, three hundred seventy-nine thousand, five hundred twenty-one".