4180397 has 4 divisors (see below), whose sum is σ = 4501980. Its totient is φ = 3858816.

The previous prime is 4180387. The next prime is 4180441. The reversal of 4180397 is 7930814.

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 1510441 + 2669956 = 1229^2 + 1634^2 .

It is not a de Polignac number, because 4180397 - 2⁶ = 4180333 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 (4180367) 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, 160772 + ... + 160797.

It is an arithmetic number, because the mean of its divisors is an integer number (1125495).

Almost surely, 2^4180397 is an apocalyptic number.

It is an amenable number.

4180397 is a deficient number, since it is larger than the sum of its proper divisors (321583).

4180397 is a wasteful number, since it uses less digits than its factorization.

4180397 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 321582.

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

The square root of 4180397 is about 2044.6019172445. The cubic root of 4180397 is about 161.0914568529.

The spelling of 4180397 in words is "four million, one hundred eighty thousand, three hundred ninety-seven".