3997449 has 12 divisors (see below), whose sum is σ = 5791812. Its totient is φ = 2656800.

The previous prime is 3997403. The next prime is 3997453. The reversal of 3997449 is 9447993.

It can be written as a sum of positive squares in 2 ways, for example, as 1334025 + 2663424 = 1155^2 + 1632^2 .

It is not a de Polignac number, because 3997449 - 2²⁰ = 2948873 is a prime.

It is a super-3 number, since 3×3997449³ (a number of 21 digits) contains 333 as substring.

It is not an unprimeable number, because it can be changed into a prime (3997349) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 4459 + ... + 5279.

It is an arithmetic number, because the mean of its divisors is an integer number (482651).

Almost surely, 2^3997449 is an apocalyptic number.

It is an amenable number.

3997449 is a deficient number, since it is larger than the sum of its proper divisors (1794363).

3997449 is a wasteful number, since it uses less digits than its factorization.

3997449 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1368 (or 1365 counting only the distinct ones).

The product of its digits is 244944, while the sum is 45.

The square root of 3997449 is about 1999.3621482863. The cubic root of 3997449 is about 158.7063525198.

The spelling of 3997449 in words is "three million, nine hundred ninety-seven thousand, four hundred forty-nine".