3970247 has 2 divisors, whose sum is σ = 3970248. Its totient is φ = 3970246.

The previous prime is 3970223. The next prime is 3970261. The reversal of 3970247 is 7420793.

It is a happy number.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 3970247 - 2¹⁴ = 3953863 is a prime.

It is a super-2 number, since 2×3970247² = 31525722482018, which contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (3970277) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1985123 + 1985124.

It is an arithmetic number, because the mean of its divisors is an integer number (1985124).

Almost surely, 2^3970247 is an apocalyptic number.

3970247 is a deficient number, since it is larger than the sum of its proper divisors (1).

3970247 is an equidigital number, since it uses as much as digits as its factorization.

3970247 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 10584, while the sum is 32.

The square root of 3970247 is about 1992.5478664263. The cubic root of 3970247 is about 158.3455424257.

The spelling of 3970247 in words is "three million, nine hundred seventy thousand, two hundred forty-seven".