4397121 has 12 divisors (see below), whose sum is σ = 6403072. Its totient is φ = 2907576.

The previous prime is 4397087. The next prime is 4397131. The reversal of 4397121 is 1217934.

It is not a de Polignac number, because 4397121 - 2⁷ = 4396993 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (4397131) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (7) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 781 + ... + 3066.

Almost surely, 2^4397121 is an apocalyptic number.

It is an amenable number.

4397121 is a deficient number, since it is larger than the sum of its proper divisors (2005951).

4397121 is a wasteful number, since it uses less digits than its factorization.

4397121 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3980 (or 3977 counting only the distinct ones).

The product of its digits is 1512, while the sum is 27.

The square root of 4397121 is about 2096.9313293477. The cubic root of 4397121 is about 163.8285065353.

The spelling of 4397121 in words is "four million, three hundred ninety-seven thousand, one hundred twenty-one".