3297729447 has 12 divisors (see below), whose sum is σ = 4792612344. Its totient is φ = 2184997680.

The previous prime is 3297729431. The next prime is 3297729493. The reversal of 3297729447 is 7449277923.

It is not a de Polignac number, because 3297729447 - 2⁴ = 3297729431 is a prime.

It is a super-2 number, since 2×3297729447² = 21750039011221851618, which contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 3297729393 and 3297729402.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (3297729427) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 1122504 + ... + 1125437.

It is an arithmetic number, because the mean of its divisors is an integer number (399384362).

Almost surely, 2^3297729447 is an apocalyptic number.

3297729447 is a deficient number, since it is larger than the sum of its proper divisors (1494882897).

3297729447 is a wasteful number, since it uses less digits than its factorization.

3297729447 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2248110 (or 2248107 counting only the distinct ones).

The product of its digits is 5334336, while the sum is 54.

The square root of 3297729447 is about 57425.8604376112. The cubic root of 3297729447 is about 1488.4640188625.

The spelling of 3297729447 in words is "three billion, two hundred ninety-seven million, seven hundred twenty-nine thousand, four hundred forty-seven".