3906660673 has 24 divisors (see below), whose sum is σ = 4321884600. Its totient is φ = 3526268928.

The previous prime is 3906660613. The next prime is 3906660697. The reversal of 3906660673 is 3760666093.

3906660673 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It can be written as a sum of positive squares in 12 ways, for example, as 1051575184 + 2855085489 = 32428^2 + 53433^2 .

It is not a de Polignac number, because 3906660673 - 2¹³ = 3906652481 is a prime.

It is a super-2 number, since 2×3906660673² = 30523995227929625858, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (3906660613) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 1314333 + ... + 1317301.

It is an arithmetic number, because the mean of its divisors is an integer number (180078525).

Almost surely, 2^3906660673 is an apocalyptic number.

It is an amenable number.

3906660673 is a deficient number, since it is larger than the sum of its proper divisors (415223927).

3906660673 is a wasteful number, since it uses less digits than its factorization.

3906660673 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3189 (or 3172 counting only the distinct ones).

The product of its (nonzero) digits is 734832, while the sum is 46.

The square root of 3906660673 is about 62503.2852976546. The cubic root of 3906660673 is about 1574.9565014274.

The spelling of 3906660673 in words is "three billion, nine hundred six million, six hundred sixty thousand, six hundred seventy-three".