4397845 has 8 divisors (see below), whose sum is σ = 5288760. Its totient is φ = 3510720.

The previous prime is 4397831. The next prime is 4397863. The reversal of 4397845 is 5487934.

It can be written as a sum of positive squares in 4 ways, for example, as 799236 + 3598609 = 894^2 + 1897^2 .

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

It is not a de Polignac number, because 4397845 - 2⁷ = 4397717 is a prime.

4397845 is a lucky number.

It is a junction number, because it is equal to n+sod(n) for n = 4397798 and 4397807.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 3615 + ... + 4675.

It is an arithmetic number, because the mean of its divisors is an integer number (661095).

Almost surely, 2^4397845 is an apocalyptic number.

It is an amenable number.

4397845 is a deficient number, since it is larger than the sum of its proper divisors (890915).

4397845 is a wasteful number, since it uses less digits than its factorization.

4397845 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1895.

The product of its digits is 120960, while the sum is 40.

The square root of 4397845 is about 2097.1039554586. The cubic root of 4397845 is about 163.8374976706.

The spelling of 4397845 in words is "four million, three hundred ninety-seven thousand, eight hundred forty-five".