4397447141 has 4 divisors (see below), whose sum is σ = 4411319532. Its totient is φ = 4383574752.

The previous prime is 4397447129. The next prime is 4397447143. The reversal of 4397447141 is 1417447934.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 215238241 + 4182208900 = 14671^2 + 64670^2 .

It is a cyclic number.

It is not a de Polignac number, because 4397447141 - 2³⁰ = 3323705317 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 4397447092 and 4397447101.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (4397447143) 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, 6935720 + ... + 6936353.

It is an arithmetic number, because the mean of its divisors is an integer number (1102829883).

Almost surely, 2^4397447141 is an apocalyptic number.

It is an amenable number.

4397447141 is a deficient number, since it is larger than the sum of its proper divisors (13872391).

4397447141 is a wasteful number, since it uses less digits than its factorization.

4397447141 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 13872390.

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

The square root of 4397447141 is about 66313.2501163983. The cubic root of 4397447141 is about 1638.3255690309.

The spelling of 4397447141 in words is "four billion, three hundred ninety-seven million, four hundred forty-seven thousand, one hundred forty-one".