3472896521 has 4 divisors (see below), whose sum is σ = 3488470272. Its totient is φ = 3457322772.

The previous prime is 3472896509. The next prime is 3472896533. The reversal of 3472896521 is 1256982743.

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: 1256982743 = 983 ⋅1278721.

It is an interprime number because it is at equal distance from previous prime (3472896509) and next prime (3472896533).

It is a cyclic number.

It is not a de Polignac number, because 3472896521 - 2⁶ = 3472896457 is a prime.

It is a super-2 number, since 2×3472896521² = 24122020491147806882, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (3472896571) 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, 7786541 + ... + 7786986.

It is an arithmetic number, because the mean of its divisors is an integer number (872117568).

Almost surely, 2^3472896521 is an apocalyptic number.

It is an amenable number.

3472896521 is a deficient number, since it is larger than the sum of its proper divisors (15573751).

3472896521 is a wasteful number, since it uses less digits than its factorization.

3472896521 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 15573750.

The product of its digits is 725760, while the sum is 47.

The square root of 3472896521 is about 58931.2864359841. The cubic root of 3472896521 is about 1514.3651769245.

The spelling of 3472896521 in words is "three billion, four hundred seventy-two million, eight hundred ninety-six thousand, five hundred twenty-one".