3899115 has 24 divisors (see below), whose sum is σ = 7373808. Its totient is φ = 1890240.

The previous prime is 3899101. The next prime is 3899117. The reversal of 3899115 is 5119983.

It is a happy number.

It is not a de Polignac number, because 3899115 - 2¹⁰ = 3898091 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 3899115.

It is not an unprimeable number, because it can be changed into a prime (3899117) 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 23 ways as a sum of consecutive naturals, for example, 3444 + ... + 4433.

It is an arithmetic number, because the mean of its divisors is an integer number (307242).

Almost surely, 2^3899115 is an apocalyptic number.

3899115 is a deficient number, since it is larger than the sum of its proper divisors (3474693).

3899115 is a wasteful number, since it uses less digits than its factorization.

3899115 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7899 (or 7896 counting only the distinct ones).

The product of its digits is 9720, while the sum is 36.

The square root of 3899115 is about 1974.6176845152. The cubic root of 3899115 is about 157.3941844042.

The spelling of 3899115 in words is "three million, eight hundred ninety-nine thousand, one hundred fifteen".