3897307 has 4 divisors (see below), whose sum is σ = 3946720. Its totient is φ = 3847896.

The previous prime is 3897269. The next prime is 3897331. The reversal of 3897307 is 7037983.

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

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-3897307 is a prime.

It is a Duffinian number.

3897307 is a lucky number.

It is not an unprimeable number, because it can be changed into a prime (3897347) 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, 24588 + ... + 24745.

It is an arithmetic number, because the mean of its divisors is an integer number (986680).

Almost surely, 2^3897307 is an apocalyptic number.

3897307 is a deficient number, since it is larger than the sum of its proper divisors (49413).

3897307 is an equidigital number, since it uses as much as digits as its factorization.

3897307 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 49412.

The product of its (nonzero) digits is 31752, while the sum is 37.

The square root of 3897307 is about 1974.1598212911. The cubic root of 3897307 is about 157.3698530127.

The spelling of 3897307 in words is "three million, eight hundred ninety-seven thousand, three hundred seven".