3970807 has 4 divisors (see below), whose sum is σ = 3978016. Its totient is φ = 3963600.

The previous prime is 3970801. The next prime is 3970819. The reversal of 3970807 is 7080793.

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 3970807 - 2⁷ = 3970679 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 (3970801) 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, 2703 + ... + 3904.

It is an arithmetic number, because the mean of its divisors is an integer number (994504).

Almost surely, 2^3970807 is an apocalyptic number.

3970807 is a deficient number, since it is larger than the sum of its proper divisors (7209).

3970807 is an equidigital number, since it uses as much as digits as its factorization.

3970807 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7208.

The product of its (nonzero) digits is 10584, while the sum is 34.

The square root of 3970807 is about 1992.6883850718. The cubic root of 3970807 is about 158.3529869109.

The spelling of 3970807 in words is "three million, nine hundred seventy thousand, eight hundred seven".