3447257147 has 4 divisors (see below), whose sum is σ = 3447608856. Its totient is φ = 3446905440.

The previous prime is 3447257123. The next prime is 3447257167. The reversal of 3447257147 is 7417527443.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 7417527443 = 49711 ⋅149213.

It is a cyclic number.

It is not a de Polignac number, because 3447257147 - 2⁶ = 3447257083 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 3447257098 and 3447257107.

It is not an unprimeable number, because it can be changed into a prime (3447257167) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 160718 + ... + 180899.

It is an arithmetic number, because the mean of its divisors is an integer number (861902214).

Almost surely, 2^3447257147 is an apocalyptic number.

3447257147 is a deficient number, since it is larger than the sum of its proper divisors (351709).

3447257147 is a wasteful number, since it uses less digits than its factorization.

3447257147 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 351708.

The product of its digits is 658560, while the sum is 44.

The square root of 3447257147 is about 58713.3472644849. The cubic root of 3447257147 is about 1510.6292637740.

It can be divided in two parts, 34472 and 57147, that added together give a palindrome (91619).

The spelling of 3447257147 in words is "three billion, four hundred forty-seven million, two hundred fifty-seven thousand, one hundred forty-seven".