3988492205 has 4 divisors (see below), whose sum is σ = 4786190652. Its totient is φ = 3190793760.

The previous prime is 3988492201. The next prime is 3988492241. The reversal of 3988492205 is 5022948893.

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 1044453124 + 2944039081 = 32318^2 + 54259^2 .

It is not a de Polignac number, because 3988492205 - 2² = 3988492201 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (3988492201) 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, 398849216 + ... + 398849225.

It is an arithmetic number, because the mean of its divisors is an integer number (1196547663).

Almost surely, 2^3988492205 is an apocalyptic number.

It is an amenable number.

3988492205 is a deficient number, since it is larger than the sum of its proper divisors (797698447).

3988492205 is an equidigital number, since it uses as much as digits as its factorization.

3988492205 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 797698446.

The product of its (nonzero) digits is 1244160, while the sum is 50.

The square root of 3988492205 is about 63154.5105673379. The cubic root of 3988492205 is about 1585.8772992891.

The spelling of 3988492205 in words is "three billion, nine hundred eighty-eight million, four hundred ninety-two thousand, two hundred five".