3914147447 has 4 divisors (see below), whose sum is σ = 4473311376. Its totient is φ = 3354983520.

The previous prime is 3914147441. The next prime is 3914147477. The reversal of 3914147447 is 7447414193.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 7447414193 = 43609 ⋅170777.

It is not a de Polignac number, because 3914147447 - 2⁴ = 3914147431 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 3914147398 and 3914147407.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (3914147441) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 279581954 + ... + 279581967.

It is an arithmetic number, because the mean of its divisors is an integer number (1118327844).

Almost surely, 2^3914147447 is an apocalyptic number.

3914147447 is a deficient number, since it is larger than the sum of its proper divisors (559163929).

3914147447 is an equidigital number, since it uses as much as digits as its factorization.

3914147447 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 559163928.

The product of its digits is 338688, while the sum is 44.

The square root of 3914147447 is about 62563.1476749692. The cubic root of 3914147447 is about 1575.9619482801.

The spelling of 3914147447 in words is "three billion, nine hundred fourteen million, one hundred forty-seven thousand, four hundred forty-seven".