4397691 has 8 divisors (see below), whose sum is σ = 6052864. Its totient is φ = 2837160.

The previous prime is 4397681. The next prime is 4397717. The reversal of 4397691 is 1967934.

4397691 is digitally balanced in base 4, because in such base it contains all the possibile digits an equal number of times.

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

It is not a de Polignac number, because 4397691 - 2²² = 203387 is a prime.

It is a super-2 number, since 2×4397691² = 38679372262962, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (4397651) 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, 23551 + ... + 23736.

It is an arithmetic number, because the mean of its divisors is an integer number (756608).

Almost surely, 2^4397691 is an apocalyptic number.

4397691 is a deficient number, since it is larger than the sum of its proper divisors (1655173).

4397691 is a wasteful number, since it uses less digits than its factorization.

4397691 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 47321.

The product of its digits is 40824, while the sum is 39.

The square root of 4397691 is about 2097.0672378348. The cubic root of 4397691 is about 163.8355852742.

The spelling of 4397691 in words is "four million, three hundred ninety-seven thousand, six hundred ninety-one".