3899129 has 4 divisors (see below), whose sum is σ = 4199076. Its totient is φ = 3599184.

The previous prime is 3899117. The next prime is 3899131. The reversal of 3899129 is 9219983.

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 469225 + 3429904 = 685^2 + 1852^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-3899129 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 (3899429) 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, 149954 + ... + 149979.

It is an arithmetic number, because the mean of its divisors is an integer number (1049769).

Almost surely, 2^3899129 is an apocalyptic number.

It is an amenable number.

3899129 is a deficient number, since it is larger than the sum of its proper divisors (299947).

3899129 is a wasteful number, since it uses less digits than its factorization.

3899129 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 299946.

The product of its digits is 34992, while the sum is 41.

The square root of 3899129 is about 1974.6212295020. The cubic root of 3899129 is about 157.3943727816.

The spelling of 3899129 in words is "three million, eight hundred ninety-nine thousand, one hundred twenty-nine".