7063521 has 8 divisors (see below), whose sum is σ = 9647904. Its totient is φ = 4594080.

The previous prime is 7063513. The next prime is 7063523. The reversal of 7063521 is 1253607.

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

It is not a de Polignac number, because 7063521 - 2³ = 7063513 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 7063491 and 7063500.

It is not an unprimeable number, because it can be changed into a prime (7063523) 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, 28591 + ... + 28836.

It is an arithmetic number, because the mean of its divisors is an integer number (1205988).

Almost surely, 2^7063521 is an apocalyptic number.

It is an amenable number.

7063521 is a deficient number, since it is larger than the sum of its proper divisors (2584383).

7063521 is a wasteful number, since it uses less digits than its factorization.

7063521 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 57471.

The product of its (nonzero) digits is 1260, while the sum is 24.

The square root of 7063521 is about 2657.7285414429. The cubic root of 7063521 is about 191.8700020626.

The spelling of 7063521 in words is "seven million, sixty-three thousand, five hundred twenty-one".