3685020215 has 16 divisors (see below), whose sum is σ = 4698375840. Its totient is φ = 2774584960.

The previous prime is 3685020211. The next prime is 3685020223. The reversal of 3685020215 is 5120205863.

It is not a de Polignac number, because 3685020215 - 2² = 3685020211 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (3685020211) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 50441 + ... + 99570.

It is an arithmetic number, because the mean of its divisors is an integer number (293648490).

Almost surely, 2^3685020215 is an apocalyptic number.

3685020215 is a deficient number, since it is larger than the sum of its proper divisors (1013355625).

3685020215 is an equidigital number, since it uses as much as digits as its factorization.

3685020215 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 150067 (or 150033 counting only the distinct ones).

The product of its (nonzero) digits is 14400, while the sum is 32.

The square root of 3685020215 is about 60704.3673470040. The cubic root of 3685020215 is about 1544.5902587123.

The spelling of 3685020215 in words is "three billion, six hundred eighty-five million, twenty thousand, two hundred fifteen".