3970890197 has 2 divisors, whose sum is σ = 3970890198. Its totient is φ = 3970890196.

The previous prime is 3970890149. The next prime is 3970890211. The reversal of 3970890197 is 7910980793.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 3118775716 + 852114481 = 55846^2 + 29191^2 .

It is a cyclic number.

It is not a de Polignac number, because 3970890197 - 2²⁰ = 3969841621 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (3970890697) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1985445098 + 1985445099.

It is an arithmetic number, because the mean of its divisors is an integer number (1985445099).

Almost surely, 2^3970890197 is an apocalyptic number.

It is an amenable number.

3970890197 is a deficient number, since it is larger than the sum of its proper divisors (1).

3970890197 is an equidigital number, since it uses as much as digits as its factorization.

3970890197 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 857304, while the sum is 53.

The square root of 3970890197 is about 63014.9997778307. Note that the first 3 decimals coincide. The cubic root of 3970890197 is about 1583.5409284911.

The spelling of 3970890197 in words is "three billion, nine hundred seventy million, eight hundred ninety thousand, one hundred ninety-seven".