3985478935 has 4 divisors (see below), whose sum is σ = 4782574728. Its totient is φ = 3188383144.

The previous prime is 3985478911. The next prime is 3985478953. The reversal of 3985478935 is 5398745893.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 3985478935 - 2⁹ = 3985478423 is a prime.

It is a Duffinian number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 398547889 + ... + 398547898.

It is an arithmetic number, because the mean of its divisors is an integer number (1195643682).

Almost surely, 2^3985478935 is an apocalyptic number.

3985478935 is a deficient number, since it is larger than the sum of its proper divisors (797095793).

3985478935 is an equidigital number, since it uses as much as digits as its factorization.

3985478935 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 797095792.

The product of its digits is 32659200, while the sum is 61.

The square root of 3985478935 is about 63130.6497273709. The cubic root of 3985478935 is about 1585.4778266593.

The spelling of 3985478935 in words is "three billion, nine hundred eighty-five million, four hundred seventy-eight thousand, nine hundred thirty-five".