3975407633 has 4 divisors (see below), whose sum is σ = 3975839028. Its totient is φ = 3974976240.

The previous prime is 3975407629. The next prime is 3975407641. The reversal of 3975407633 is 3367045793.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 3367045793 = 211 ⋅15957563.

It can be written as a sum of positive squares in 2 ways, for example, as 2812393024 + 1163014609 = 53032^2 + 34103^2 .

It is a cyclic number.

It is not a de Polignac number, because 3975407633 - 2² = 3975407629 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (3975407603) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 201566 + ... + 220407.

It is an arithmetic number, because the mean of its divisors is an integer number (993959757).

Almost surely, 2^3975407633 is an apocalyptic number.

It is an amenable number.

3975407633 is a deficient number, since it is larger than the sum of its proper divisors (431395).

3975407633 is an equidigital number, since it uses as much as digits as its factorization.

3975407633 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 431394.

The product of its (nonzero) digits is 1428840, while the sum is 47.

The square root of 3975407633 is about 63050.8337216884. The cubic root of 3975407633 is about 1584.1411997520.

The spelling of 3975407633 in words is "three billion, nine hundred seventy-five million, four hundred seven thousand, six hundred thirty-three".