3956397733 has 2 divisors, whose sum is σ = 3956397734. Its totient is φ = 3956397732.

The previous prime is 3956397713. The next prime is 3956397773. The reversal of 3956397733 is 3377936593.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 3856037409 + 100360324 = 62097^2 + 10018^2 .

It is an emirp because it is prime and its reverse (3377936593) is a distict prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-3956397733 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (3956397713) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1978198866 + 1978198867.

It is an arithmetic number, because the mean of its divisors is an integer number (1978198867).

Almost surely, 2^3956397733 is an apocalyptic number.

It is an amenable number.

3956397733 is a deficient number, since it is larger than the sum of its proper divisors (1).

3956397733 is an equidigital number, since it uses as much as digits as its factorization.

3956397733 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 9644670, while the sum is 55.

The square root of 3956397733 is about 62899.9024880007. The cubic root of 3956397733 is about 1581.6121094428.

The spelling of 3956397733 in words is "three billion, nine hundred fifty-six million, three hundred ninety-seven thousand, seven hundred thirty-three".