3875658065 has 4 divisors (see below), whose sum is σ = 4650789684. Its totient is φ = 3100526448.

The previous prime is 3875658041. The next prime is 3875658103. The reversal of 3875658065 is 5608565783.

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 1450391056 + 2425267009 = 38084^2 + 49247^2 .

It is a cyclic number.

It is not a de Polignac number, because 3875658065 - 2⁶ = 3875658001 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 3875657998 and 3875658016.

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, 387565802 + ... + 387565811.

It is an arithmetic number, because the mean of its divisors is an integer number (1162697421).

Almost surely, 2^3875658065 is an apocalyptic number.

It is an amenable number.

3875658065 is a deficient number, since it is larger than the sum of its proper divisors (775131619).

3875658065 is an equidigital number, since it uses as much as digits as its factorization.

3875658065 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 775131618.

The product of its (nonzero) digits is 6048000, while the sum is 53.

The square root of 3875658065 is about 62254.7834708306. The cubic root of 3875658065 is about 1570.7792343956.

The spelling of 3875658065 in words is "three billion, eight hundred seventy-five million, six hundred fifty-eight thousand, sixty-five".