3506620673 has 2 divisors, whose sum is σ = 3506620674. Its totient is φ = 3506620672.

The previous prime is 3506620657. The next prime is 3506620703. The reversal of 3506620673 is 3760266053.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 3370034704 + 136585969 = 58052^2 + 11687^2 .

It is a cyclic number.

It is not a de Polignac number, because 3506620673 - 2⁴ = 3506620657 is a prime.

It is not a weakly prime, because it can be changed into another prime (3506620643) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1753310336 + 1753310337.

It is an arithmetic number, because the mean of its divisors is an integer number (1753310337).

Almost surely, 2^3506620673 is an apocalyptic number.

It is an amenable number.

3506620673 is a deficient number, since it is larger than the sum of its proper divisors (1).

3506620673 is an equidigital number, since it uses as much as digits as its factorization.

3506620673 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 136080, while the sum is 38.

The square root of 3506620673 is about 59216.7262941814. The cubic root of 3506620673 is about 1519.2512287652.

The spelling of 3506620673 in words is "three billion, five hundred six million, six hundred twenty thousand, six hundred seventy-three".