3470521 has 4 divisors (see below), whose sum is σ = 3653200. Its totient is φ = 3287844.

The previous prime is 3470501. The next prime is 3470581. The reversal of 3470521 is 1250743.

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, and also an emirpimes, since its reverse is a distinct semiprime: 1250743 = 13 ⋅96211.

It is a cyclic number.

It is not a de Polignac number, because 3470521 - 2⁹ = 3470009 is a prime.

It is a super-2 number, since 2×3470521² = 24089032022882, 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 = 3470492 and 3470501.

It is not an unprimeable number, because it can be changed into a prime (3470501) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 91311 + ... + 91348.

It is an arithmetic number, because the mean of its divisors is an integer number (913300).

Almost surely, 2^3470521 is an apocalyptic number.

It is an amenable number.

3470521 is a deficient number, since it is larger than the sum of its proper divisors (182679).

3470521 is a wasteful number, since it uses less digits than its factorization.

3470521 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 182678.

The product of its (nonzero) digits is 840, while the sum is 22.

The square root of 3470521 is about 1862.9334394980. The cubic root of 3470521 is about 151.4019814218.

The spelling of 3470521 in words is "three million, four hundred seventy thousand, five hundred twenty-one".