3685140517 has 4 divisors (see below), whose sum is σ = 3685813516. Its totient is φ = 3684467520.

The previous prime is 3685140491. The next prime is 3685140527. The reversal of 3685140517 is 7150415863.

It is a happy number.

3685140517 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

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 2350407361 + 1334733156 = 48481^2 + 36534^2 .

It is a cyclic number.

It is not a de Polignac number, because 3685140517 - 2²³ = 3676751909 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 3685140517.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (3685140527) 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, 328218 + ... + 339259.

It is an arithmetic number, because the mean of its divisors is an integer number (921453379).

Almost surely, 2^3685140517 is an apocalyptic number.

It is an amenable number.

3685140517 is a deficient number, since it is larger than the sum of its proper divisors (672999).

3685140517 is an equidigital number, since it uses as much as digits as its factorization.

3685140517 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 672998.

The product of its (nonzero) digits is 100800, while the sum is 40.

The square root of 3685140517 is about 60705.3582231420. The cubic root of 3685140517 is about 1544.6070668766.

The spelling of 3685140517 in words is "three billion, six hundred eighty-five million, one hundred forty thousand, five hundred seventeen".