3987417229 has 4 divisors (see below), whose sum is σ = 3987543580. Its totient is φ = 3987290880.

The previous prime is 3987417223. The next prime is 3987417233. The reversal of 3987417229 is 9227147893.

It is a semiprime because it is the product of two primes, and also a brilliant number, because the two primes have the same length.

It can be written as a sum of positive squares in 2 ways, for example, as 2756460004 + 1230957225 = 52502^2 + 35085^2 .

It is a cyclic number.

It is not a de Polignac number, because 3987417229 - 2⁹ = 3987416717 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 (3987417223) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 28717 + ... + 93805.

It is an arithmetic number, because the mean of its divisors is an integer number (996885895).

Almost surely, 2^3987417229 is an apocalyptic number.

It is an amenable number.

3987417229 is a deficient number, since it is larger than the sum of its proper divisors (126351).

3987417229 is an equidigital number, since it uses as much as digits as its factorization.

3987417229 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 126350.

The product of its digits is 1524096, while the sum is 52.

The square root of 3987417229 is about 63145.9993111203. Note that the first 3 decimals coincide. The cubic root of 3987417229 is about 1585.7348115913.

The spelling of 3987417229 in words is "three billion, nine hundred eighty-seven million, four hundred seventeen thousand, two hundred twenty-nine".