3920036905 has 8 divisors (see below), whose sum is σ = 4705106112. Its totient is φ = 3135321648.

The previous prime is 3920036903. The next prime is 3920036917. The reversal of 3920036905 is 5096300293.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 3920036905 - 2¹ = 3920036903 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (3920036903) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 63477 + ... + 108946.

It is an arithmetic number, because the mean of its divisors is an integer number (588138264).

Almost surely, 2^3920036905 is an apocalyptic number.

It is an amenable number.

3920036905 is a deficient number, since it is larger than the sum of its proper divisors (785069207).

3920036905 is a wasteful number, since it uses less digits than its factorization.

3920036905 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 176975.

The product of its (nonzero) digits is 43740, while the sum is 37.

The square root of 3920036905 is about 62610.1980910458. The cubic root of 3920036905 is about 1576.7519807220.

The spelling of 3920036905 in words is "three billion, nine hundred twenty million, thirty-six thousand, nine hundred five".