3927397 has 4 divisors (see below), whose sum is σ = 3943296. Its totient is φ = 3911500.

The previous prime is 3927377. The next prime is 3927409. The reversal of 3927397 is 7937293.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 3927397 - 2⁷ = 3927269 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 (3927307) 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, 7573 + ... + 8074.

It is an arithmetic number, because the mean of its divisors is an integer number (985824).

Almost surely, 2^3927397 is an apocalyptic number.

It is an amenable number.

3927397 is a deficient number, since it is larger than the sum of its proper divisors (15899).

3927397 is a wasteful number, since it uses less digits than its factorization.

3927397 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 15898.

The product of its digits is 71442, while the sum is 40.

The square root of 3927397 is about 1981.7661315100. The cubic root of 3927397 is about 157.7738177976.

The spelling of 3927397 in words is "three million, nine hundred twenty-seven thousand, three hundred ninety-seven".