3988539149 has 4 divisors (see below), whose sum is σ = 4558330464. Its totient is φ = 3418747836.

The previous prime is 3988539073. The next prime is 3988539151. The reversal of 3988539149 is 9419358893.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a de Polignac number, because none of the positive numbers 2^k-3988539149 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 (3988539199) 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, 284895647 + ... + 284895660.

It is an arithmetic number, because the mean of its divisors is an integer number (1139582616).

Almost surely, 2^3988539149 is an apocalyptic number.

It is an amenable number.

3988539149 is a deficient number, since it is larger than the sum of its proper divisors (569791315).

3988539149 is an equidigital number, since it uses as much as digits as its factorization.

3988539149 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 569791314.

The product of its digits is 8398080, while the sum is 59.

The square root of 3988539149 is about 63154.8822261589. The cubic root of 3988539149 is about 1585.8835211167.

The spelling of 3988539149 in words is "three billion, nine hundred eighty-eight million, five hundred thirty-nine thousand, one hundred forty-nine".