3890315065 has 24 divisors (see below), whose sum is σ = 5848302600. Its totient is φ = 2462439168.

The previous prime is 3890315029. The next prime is 3890315081. The reversal of 3890315065 is 5605130983.

It can be written as a sum of positive squares in 4 ways, for example, as 653160249 + 3237154816 = 25557^2 + 56896^2 .

It is not a de Polignac number, because 3890315065 - 2¹¹ = 3890313017 is a prime.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 607540 + ... + 613909.

It is an arithmetic number, because the mean of its divisors is an integer number (243679275).

Almost surely, 2^3890315065 is an apocalyptic number.

3890315065 is a gapful number since it is divisible by the number (35) formed by its first and last digit.

It is an amenable number.

3890315065 is a deficient number, since it is larger than the sum of its proper divisors (1957987535).

3890315065 is a wasteful number, since it uses less digits than its factorization.

3890315065 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1221481 (or 1221474 counting only the distinct ones).

The product of its (nonzero) digits is 97200, while the sum is 40.

The square root of 3890315065 is about 62372.3902460055. The cubic root of 3890315065 is about 1572.7568726808.

The spelling of 3890315065 in words is "three billion, eight hundred ninety million, three hundred fifteen thousand, sixty-five".