3947290093 has 2 divisors, whose sum is σ = 3947290094. Its totient is φ = 3947290092.

The previous prime is 3947290051. The next prime is 3947290121. The reversal of 3947290093 is 3900927493.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 3100596489 + 846693604 = 55683^2 + 29098^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-3947290093 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (3947290003) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1973645046 + 1973645047.

It is an arithmetic number, because the mean of its divisors is an integer number (1973645047).

Almost surely, 2^3947290093 is an apocalyptic number.

It is an amenable number.

3947290093 is a deficient number, since it is larger than the sum of its proper divisors (1).

3947290093 is an equidigital number, since it uses as much as digits as its factorization.

3947290093 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 367416, while the sum is 46.

The square root of 3947290093 is about 62827.4628884535. The cubic root of 3947290093 is about 1580.3975516468.

The spelling of 3947290093 in words is "three billion, nine hundred forty-seven million, two hundred ninety thousand, ninety-three".