3956397706 has 8 divisors (see below), whose sum is σ = 5943686724. Its totient is φ = 1975168800.

The previous prime is 3956397691. The next prime is 3956397713. The reversal of 3956397706 is 6077936593.

It can be written as a sum of positive squares in 2 ways, for example, as 3592923481 + 363474225 = 59941^2 + 19065^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1513395 + ... + 1516006.

Almost surely, 2^3956397706 is an apocalyptic number.

3956397706 is a deficient number, since it is larger than the sum of its proper divisors (1987289018).

3956397706 is a wasteful number, since it uses less digits than its factorization.

3956397706 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3030056.

The product of its (nonzero) digits is 6429780, while the sum is 55.

The square root of 3956397706 is about 62899.9022733740. The cubic root of 3956397706 is about 1581.6121058450.

The spelling of 3956397706 in words is "three billion, nine hundred fifty-six million, three hundred ninety-seven thousand, seven hundred six".