7070521 has 8 divisors (see below), whose sum is σ = 7578144. Its totient is φ = 6573120.

The previous prime is 7070507. The next prime is 7070537. The reversal of 7070521 is 1250707.

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 7070521 - 2⁹ = 7070009 is a prime.

It is a super-2 number, since 2×7070521² = 99984534422882, which contains 22 as substring.

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

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 7070492 and 7070501.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (7070551) 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, 1095 + ... + 3916.

It is an arithmetic number, because the mean of its divisors is an integer number (947268).

Almost surely, 2^7070521 is an apocalyptic number.

It is an amenable number.

7070521 is a deficient number, since it is larger than the sum of its proper divisors (507623).

7070521 is a wasteful number, since it uses less digits than its factorization.

7070521 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5111.

The product of its (nonzero) digits is 490, while the sum is 22.

The square root of 7070521 is about 2659.0451293651. The cubic root of 7070521 is about 191.9333626532.

The spelling of 7070521 in words is "seven million, seventy thousand, five hundred twenty-one".