3689033985 has 48 divisors (see below), whose sum is σ = 7869947904. Its totient is φ = 1556689536.

The previous prime is 3689033951. The next prime is 3689034029. The reversal of 3689033985 is 5893309863.

It is not a de Polignac number, because 3689033985 - 2⁷ = 3689033857 is a prime.

It is a Curzon number.

It is an unprimeable number.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 446337 + ... + 454526.

It is an arithmetic number, because the mean of its divisors is an integer number (163957248).

Almost surely, 2^3689033985 is an apocalyptic number.

3689033985 is a gapful number since it is divisible by the number (35) formed by its first and last digit.

It is an amenable number.

3689033985 is an abundant number, since it is smaller than the sum of its proper divisors (4180913919).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

3689033985 is a wasteful number, since it uses less digits than its factorization.

3689033985 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 900894 (or 900891 counting only the distinct ones).

The product of its (nonzero) digits is 4199040, while the sum is 54.

The square root of 3689033985 is about 60737.4183267613. The cubic root of 3689033985 is about 1545.1508508880.

The spelling of 3689033985 in words is "three billion, six hundred eighty-nine million, thirty-three thousand, nine hundred eighty-five".