3947973383 has 2 divisors, whose sum is σ = 3947973384. Its totient is φ = 3947973382.

The previous prime is 3947973373. The next prime is 3947973397. The reversal of 3947973383 is 3833797493.

It is a happy number.

3947973383 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 3947973383 - 2¹⁰ = 3947972359 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (3947973313) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1973986691 + 1973986692.

It is an arithmetic number, because the mean of its divisors is an integer number (1973986692).

Almost surely, 2^3947973383 is an apocalyptic number.

3947973383 is a deficient number, since it is larger than the sum of its proper divisors (1).

3947973383 is an equidigital number, since it uses as much as digits as its factorization.

3947973383 is an evil number, because the sum of its binary digits is even.

The product of its digits is 10287648, while the sum is 56.

The square root of 3947973383 is about 62832.9004821519. The cubic root of 3947973383 is about 1580.4887372039.

The spelling of 3947973383 in words is "three billion, nine hundred forty-seven million, nine hundred seventy-three thousand, three hundred eighty-three".