3997436 has 6 divisors (see below), whose sum is σ = 6995520. Its totient is φ = 1998716.

The previous prime is 3997403. The next prime is 3997453. The reversal of 3997436 is 6347993.

It is a junction number, because it is equal to n+sod(n) for n = 3997393 and 3997402.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 499676 + ... + 499683.

It is an arithmetic number, because the mean of its divisors is an integer number (1165920).

Almost surely, 2^3997436 is an apocalyptic number.

It is an amenable number.

3997436 is a deficient number, since it is larger than the sum of its proper divisors (2998084).

3997436 is a wasteful number, since it uses less digits than its factorization.

3997436 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 999363 (or 999361 counting only the distinct ones).

The product of its digits is 122472, while the sum is 41.

The square root of 3997436 is about 1999.3588972468. The cubic root of 3997436 is about 158.7061804781.

The spelling of 3997436 in words is "three million, nine hundred ninety-seven thousand, four hundred thirty-six".