3870347 has 4 divisors (see below), whose sum is σ = 4168080. Its totient is φ = 3572616.

The previous prime is 3870337. The next prime is 3870401. The reversal of 3870347 is 7430783.

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 3870347 - 2⁶ = 3870283 is a prime.

It is an alternating number because its digits alternate between odd and even.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (3870337) 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, 148847 + ... + 148872.

It is an arithmetic number, because the mean of its divisors is an integer number (1042020).

Almost surely, 2^3870347 is an apocalyptic number.

3870347 is a deficient number, since it is larger than the sum of its proper divisors (297733).

3870347 is a wasteful number, since it uses less digits than its factorization.

3870347 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 297732.

The product of its (nonzero) digits is 14112, while the sum is 32.

The square root of 3870347 is about 1967.3197503202. The cubic root of 3870347 is about 157.0061392923.

The spelling of 3870347 in words is "three million, eight hundred seventy thousand, three hundred forty-seven".