5498639 has 4 divisors (see below), whose sum is σ = 5555424. Its totient is φ = 5441856.

The previous prime is 5498627. The next prime is 5498641. The reversal of 5498639 is 9368945.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-5498639 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 5498639.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (5498609) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 28247 + ... + 28440.

It is an arithmetic number, because the mean of its divisors is an integer number (1388856).

Almost surely, 2^5498639 is an apocalyptic number.

5498639 is a deficient number, since it is larger than the sum of its proper divisors (56785).

5498639 is an equidigital number, since it uses as much as digits as its factorization.

5498639 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 56784.

The product of its digits is 233280, while the sum is 44.

The square root of 5498639 is about 2344.9176957838. The cubic root of 5498639 is about 176.5028555528.

The spelling of 5498639 in words is "five million, four hundred ninety-eight thousand, six hundred thirty-nine".