4899639 has 8 divisors (see below), whose sum is σ = 6625152. Its totient is φ = 3220280.

The previous prime is 4899619. The next prime is 4899641. The reversal of 4899639 is 9369984.

It is a happy number.

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

It is a cyclic number.

It is not a de Polignac number, because 4899639 - 2²⁰ = 3851063 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (4899619) 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, 11289 + ... + 11714.

It is an arithmetic number, because the mean of its divisors is an integer number (828144).

Almost surely, 2^4899639 is an apocalyptic number.

4899639 is a deficient number, since it is larger than the sum of its proper divisors (1725513).

4899639 is a wasteful number, since it uses less digits than its factorization.

4899639 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 23077.

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

The square root of 4899639 is about 2213.5128190277. The cubic root of 4899639 is about 169.8457539773.

The spelling of 4899639 in words is "four million, eight hundred ninety-nine thousand, six hundred thirty-nine".