3997367 has 4 divisors (see below), whose sum is σ = 4360776. Its totient is φ = 3633960.

The previous prime is 3997361. The next prime is 3997381. The reversal of 3997367 is 7637993.

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

It is not a de Polignac number, because 3997367 - 2⁸ = 3997111 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 (3997361) by changing a digit.

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 in 3 ways as a sum of consecutive naturals, for example, 181688 + ... + 181709.

It is an arithmetic number, because the mean of its divisors is an integer number (1090194).

Almost surely, 2^3997367 is an apocalyptic number.

3997367 is a deficient number, since it is larger than the sum of its proper divisors (363409).

3997367 is a wasteful number, since it uses less digits than its factorization.

3997367 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 363408.

The product of its digits is 214326, while the sum is 44.

The square root of 3997367 is about 1999.3416416411. The cubic root of 3997367 is about 158.7052673269.

The spelling of 3997367 in words is "three million, nine hundred ninety-seven thousand, three hundred sixty-seven".