3997031 has 4 divisors (see below), whose sum is σ = 4045272. Its totient is φ = 3948792.

The previous prime is 3997003. The next prime is 3997039. The reversal of 3997031 is 1307993.

It is a happy number.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 3997031 - 2¹⁰ = 3996007 is a prime.

It is a super-2 number, since 2×3997031² = 31952513629922, which contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (3997039) 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, 23996 + ... + 24161.

It is an arithmetic number, because the mean of its divisors is an integer number (1011318).

Almost surely, 2^3997031 is an apocalyptic number.

3997031 is a deficient number, since it is larger than the sum of its proper divisors (48241).

3997031 is an equidigital number, since it uses as much as digits as its factorization.

3997031 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 48240.

The product of its (nonzero) digits is 5103, while the sum is 32.

The square root of 3997031 is about 1999.2576122151. The cubic root of 3997031 is about 158.7008205278.

The spelling of 3997031 in words is "three million, nine hundred ninety-seven thousand, thirty-one".