4397081 has 4 divisors (see below), whose sum is σ = 4735332. Its totient is φ = 4058832.

The previous prime is 4397077. The next prime is 4397083. The reversal of 4397081 is 1807934.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 1807934 = 2 ⋅903967.

It can be written as a sum of positive squares in 2 ways, for example, as 2859481 + 1537600 = 1691^2 + 1240^2 .

It is a cyclic number.

It is not a de Polignac number, because 4397081 - 2² = 4397077 is a prime.

It is a super-2 number, since 2×4397081² = 38668642641122, which contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (4397083) 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, 169106 + ... + 169131.

It is an arithmetic number, because the mean of its divisors is an integer number (1183833).

Almost surely, 2^4397081 is an apocalyptic number.

It is an amenable number.

4397081 is a deficient number, since it is larger than the sum of its proper divisors (338251).

4397081 is a wasteful number, since it uses less digits than its factorization.

4397081 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 338250.

The product of its (nonzero) digits is 6048, while the sum is 32.

The square root of 4397081 is about 2096.9217915793. The cubic root of 4397081 is about 163.8280097587.

The spelling of 4397081 in words is "four million, three hundred ninety-seven thousand, eighty-one".