3895108561 has 4 divisors (see below), whose sum is σ = 4124232612. Its totient is φ = 3665984512.

The previous prime is 3895108559. The next prime is 3895108573. The reversal of 3895108561 is 1658015983.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 1658015983 = 13 ⋅127539691.

It can be written as a sum of positive squares in 2 ways, for example, as 1425515536 + 2469593025 = 37756^2 + 49695^2 .

It is a cyclic number.

It is not a de Polignac number, because 3895108561 - 2¹ = 3895108559 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (3895103561) 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, 114562000 + ... + 114562033.

It is an arithmetic number, because the mean of its divisors is an integer number (1031058153).

Almost surely, 2^3895108561 is an apocalyptic number.

It is an amenable number.

3895108561 is a deficient number, since it is larger than the sum of its proper divisors (229124051).

3895108561 is a wasteful number, since it uses less digits than its factorization.

3895108561 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 229124050.

The product of its (nonzero) digits is 259200, while the sum is 46.

The square root of 3895108561 is about 62410.8048417900. The cubic root of 3895108561 is about 1573.4025709809.

The spelling of 3895108561 in words is "three billion, eight hundred ninety-five million, one hundred eight thousand, five hundred sixty-one".