3970847 has 4 divisors (see below), whose sum is σ = 3997296. Its totient is φ = 3944400.

The previous prime is 3970831. The next prime is 3970849. The reversal of 3970847 is 7480793.

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 3970847 - 2⁴ = 3970831 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 3970847.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (3970849) 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, 12998 + ... + 13299.

It is an arithmetic number, because the mean of its divisors is an integer number (999324).

Almost surely, 2^3970847 is an apocalyptic number.

3970847 is a deficient number, since it is larger than the sum of its proper divisors (26449).

3970847 is a wasteful number, since it uses less digits than its factorization.

3970847 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 26448.

The product of its (nonzero) digits is 42336, while the sum is 38.

The square root of 3970847 is about 1992.6984217387. The cubic root of 3970847 is about 158.3535186331.

The spelling of 3970847 in words is "three million, nine hundred seventy thousand, eight hundred forty-seven".