7416521 has 4 divisors (see below), whose sum is σ = 8476032. Its totient is φ = 6357012.

The previous prime is 7416499. The next prime is 7416559. The reversal of 7416521 is 1256147.

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 not a de Polignac number, because 7416521 - 2¹⁴ = 7400137 is a prime.

It is an alternating number because its digits alternate between odd and even.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (7416571) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 529745 + ... + 529758.

It is an arithmetic number, because the mean of its divisors is an integer number (2119008).

Almost surely, 2^7416521 is an apocalyptic number.

It is an amenable number.

7416521 is a deficient number, since it is larger than the sum of its proper divisors (1059511).

7416521 is a wasteful number, since it uses less digits than its factorization.

7416521 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1059510.

The product of its digits is 1680, while the sum is 26.

The square root of 7416521 is about 2723.3290289644. The cubic root of 7416521 is about 195.0144280361.

The spelling of 7416521 in words is "seven million, four hundred sixteen thousand, five hundred twenty-one".