4639899 has 8 divisors (see below), whose sum is σ = 6748992. Its totient is φ = 2812040.

The previous prime is 4639891. The next prime is 4639903. The reversal of 4639899 is 9989364.

It is a happy number.

4639899 is digitally balanced in base 4, because in such base it contains all the possibile digits an equal number of times.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 4639899 - 2³ = 4639891 is a prime.

It is not an unprimeable number, because it can be changed into a prime (4639891) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 70269 + ... + 70334.

It is an arithmetic number, because the mean of its divisors is an integer number (843624).

Almost surely, 2^4639899 is an apocalyptic number.

4639899 is a deficient number, since it is larger than the sum of its proper divisors (2109093).

4639899 is a wasteful number, since it uses less digits than its factorization.

4639899 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 140617.

The product of its digits is 419904, while the sum is 48.

The square root of 4639899 is about 2154.0424786898. The cubic root of 4639899 is about 166.7898081058.

The spelling of 4639899 in words is "four million, six hundred thirty-nine thousand, eight hundred ninety-nine".