3950312657 has 4 divisors (see below), whose sum is σ = 3957255780. Its totient is φ = 3943369536.

The previous prime is 3950312599. The next prime is 3950312669. The reversal of 3950312657 is 7562130593.

It is a happy number.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 2605183681 + 1345128976 = 51041^2 + 36676^2 .

It is a cyclic number.

It is not a de Polignac number, because 3950312657 - 2¹⁰ = 3950311633 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (3950312677) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 3470708 + ... + 3471845.

It is an arithmetic number, because the mean of its divisors is an integer number (989313945).

Almost surely, 2^3950312657 is an apocalyptic number.

It is an amenable number.

3950312657 is a deficient number, since it is larger than the sum of its proper divisors (6943123).

3950312657 is an equidigital number, since it uses as much as digits as its factorization.

3950312657 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6943122.

The product of its (nonzero) digits is 170100, while the sum is 41.

The square root of 3950312657 is about 62851.5127662016. The cubic root of 3950312657 is about 1580.8008354093.

The spelling of 3950312657 in words is "three billion, nine hundred fifty million, three hundred twelve thousand, six hundred fifty-seven".