4145447 has 8 divisors (see below), whose sum is σ = 4264896. Its totient is φ = 4027392.

The previous prime is 4145423. The next prime is 4145459. The reversal of 4145447 is 7445414.

It is a happy number.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 4145447 - 2⁸ = 4145191 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (4145047) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 8843 + ... + 9299.

It is an arithmetic number, because the mean of its divisors is an integer number (533112).

Almost surely, 2^4145447 is an apocalyptic number.

4145447 is a gapful number since it is divisible by the number (47) formed by its first and last digit.

4145447 is a deficient number, since it is larger than the sum of its proper divisors (119449).

4145447 is a wasteful number, since it uses less digits than its factorization.

4145447 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 697.

The product of its digits is 8960, while the sum is 29.

The square root of 4145447 is about 2036.0370821770. The cubic root of 4145447 is about 160.6412675616.

The spelling of 4145447 in words is "four million, one hundred forty-five thousand, four hundred forty-seven".